BTechibtechi.in
Loading Loading
Free IIT Madras BS notes, PYQs and mock tests at btechi.in

Managerial Economics · Most repeated questions

BSMS3206 · 61 questions · 65 marks · 3 papers · 29 question types

Answer key

Indian Institute of Technology Madras

BS Degree Programme · Examination & Study Paper

BSMS3206 · Managerial Economics

Most repeated questions

Official Paper

Examination Instructions & Guidelines

Solve on notebook/paper first before checking solutions.
MCQ: Exactly 1 option is correct. Negative marking applies.
NAT: Numerical response. No negative marking.
Scientific calculator allowed for all calculations.
Official answer key is sealed at the end of this sheet.

Type 1 · asked 3 times · Monopoly pricing

Which region of the demand curve a monopolist produces in

Q1MCQ0.5 Marks·Choose one option
Quiz 2 · 3 Aug 2025 (AN)Key ↓
A monopolist will never operate in the elastic portion of the demand curve.
1. ATrue
2. BFalse
Q2MCQ1 Mark·Choose one option
End Term · 31 Aug 2025 (AN)Key ↓
A monopolist never produces in
1. AThe inelastic region of market demand curve
2. BThe elastic region of market demand curve
3. CThe whole demand curve
4. DNone of these
Q3MCQ1 Mark·Choose one option
End Term · 31 Aug 2025 (FN)Key ↓
A monopolist always produces in
1. AThe inelastic region of market demand curve
2. BThe elastic region of market demand curve
3. CThe whole demand curve
4. DNone of these

Type 2 · asked 3 times · Market equilibrium, taxes & subsidies

Find pre-tax equilibrium quantity and price from linear demand and supply

Read the passage below, then answer Q4–Q5
Based on the above data, answer the given subquestions.
Q4NAT1 Mark·Write the number
Quiz 2 · 3 Aug 2025 (AN)Key ↓
Your answer:
Q5NAT1 Mark·Write the number
Quiz 2 · 3 Aug 2025 (AN)Key ↓
Your answer:
Read the passage below, then answer Q6
The market demand curve for pizzas is P=300-Q and the market supply curve is P=60+2Q. A tax of t=15 INR is imposed on one unit of pizza sold. Answer the given subquestions.
Q6MCQ0.5 Marks·Choose one option
End Term · 31 Aug 2025 (AN)Key ↓
The equilibrium quantity and price before incidence of tax are
1. A
2. B
3. C
4. D

Type 3 · asked 3 times · Market equilibrium, taxes & subsidies

Tax incidence when supply or demand is perfectly inelastic

Q7MCQ0.5 Marks·Choose one option
Quiz 2 · 3 Aug 2025 (AN)Key ↓
The entire burden of a quantity tax falls on buyers when the price elasticity of supply is zero.
1. ATrue
2. BFalse
Q8MCQ0.5 Marks·Choose one option
Quiz 2 · 3 Aug 2025 (AN)Key ↓
If demand is perfectly inelastic, consumers bear the full incidence of a per-unit tax.
1. ATrue
2. BFalse
Q9MCQ1 Mark·Choose one option
End Term · 31 Aug 2025 (FN)Key ↓
Suppose the supply curve for pencils is vertical and government imposes a tax in this market.
1. ADeadweight loss of tax in this market will be finite
2. BSuppliers are paying full amount of tax
3. CBoth Deadweight loss of tax in this market will be finite & Suppliers are paying full amount of tax
4. DNone of these

Type 4 · asked 2 times · International trade & tariffs

Domestic equilibrium price of ball pens with no imports

Read the passage below, then answer Q10
Based on the above data, answer the given subquestions.
Q10NAT1 Mark·Write the number
End Term · 31 Aug 2025 (AN)Key ↓
The equilibrium price of ball pens in the domestic market without any imports will be P*= _______
Your answer:
Read the passage below, then answer Q11
Based on the above data, answer the given subquestions.
Q11NAT1 Mark·Write the number
End Term · 31 Aug 2025 (FN)Key ↓
Your answer:

Type 5 · asked 2 times · International trade & tariffs

Consumer surplus in the no-import domestic market

Read the passage below, then answer Q12
Based on the above data, answer the given subquestions.
Q12NAT1 Mark·Write the number
End Term · 31 Aug 2025 (AN)Key ↓
Consumer surplus in this case will be CS = ____________
Your answer:
Read the passage below, then answer Q13
Based on the above data, answer the given subquestions.
Q13NAT1 Mark·Write the number
End Term · 31 Aug 2025 (FN)Key ↓
Consumer surplus in this case will be CS = _____________
Your answer:

Type 6 · asked 2 times · International trade & tariffs

Producer surplus in the no-import domestic market

Read the passage below, then answer Q14
Based on the above data, answer the given subquestions.
Q14NAT1 Mark·Write the number
End Term · 31 Aug 2025 (AN)Key ↓
Producer surplus in this case will be PS = ____________
Your answer:
Read the passage below, then answer Q15
Based on the above data, answer the given subquestions.
Q15NAT1 Mark·Write the number
End Term · 31 Aug 2025 (FN)Key ↓
Producer surplus in this case will be PS = ______________
Your answer:

Type 7 · asked 2 times · International trade & tariffs

Units imported at the world price without a tariff

Read the passage below, then answer Q16
Based on the above data, answer the given subquestions.
Q16NAT1 Mark·Write the number
End Term · 31 Aug 2025 (AN)Key ↓
In case of import without tariff, how many total units of ball pens will be imported _______________
Your answer:
Read the passage below, then answer Q17
Based on the above data, answer the given subquestions.
Q17NAT1 Mark·Write the number
End Term · 31 Aug 2025 (FN)Key ↓
In case of import without tariff, how many total units of ball pens will be imported _____________
Your answer:

Type 8 · asked 2 times · International trade & tariffs

Domestic supply at the world price without a tariff

Read the passage below, then answer Q18
Based on the above data, answer the given subquestions.
Q18NAT1 Mark·Write the number
End Term · 31 Aug 2025 (AN)Key ↓
In case of import without tariff, how many units of ball pens are being supplied by domestic firms ____________
Your answer:
Read the passage below, then answer Q19
Based on the above data, answer the given subquestions.
Q19NAT1 Mark·Write the number
End Term · 31 Aug 2025 (FN)Key ↓
In case of import without tariff, how many units of ball pens are being supplied by domestic firms ___________
Your answer:

Type 9 · asked 2 times · International trade & tariffs

Units imported after a per-unit tariff

Read the passage below, then answer Q20
Based on the above data, answer the given subquestions.
Q20NAT1 Mark·Write the number
End Term · 31 Aug 2025 (AN)Key ↓
With the tariff, how many units would be imported? ____________
Your answer:
Read the passage below, then answer Q21
Based on the above data, answer the given subquestions.
Q21NAT1 Mark·Write the number
End Term · 31 Aug 2025 (FN)Key ↓
With the tariff, how many units would be imported? _____________
Your answer:

Type 10 · asked 2 times · International trade & tariffs

Change in domestic producer surplus due to a tariff

Read the passage below, then answer Q22
Based on the above data, answer the given subquestions.
Q22NAT1.5 Marks·Write the number
End Term · 31 Aug 2025 (AN)Key ↓
How much would domestic producer surplus change compared to the case with imports without tariffs if the government introduces a ₹10 import duty per ball pen?____________
Your answer:
Read the passage below, then answer Q23
Based on the above data, answer the given subquestions.
Q23NAT1.5 Marks·Write the number
End Term · 31 Aug 2025 (FN)Key ↓
How much would domestic producer surplus change compared to the case with imports without tariffs if the government introduces a ₹10 import duty per ball pen? ___________
Your answer:

Type 11 · asked 2 times · International trade & tariffs

Government revenue from an import tariff

Read the passage below, then answer Q24
Based on the above data, answer the given subquestions.
Q24NAT1.5 Marks·Write the number
End Term · 31 Aug 2025 (AN)Key ↓
How much revenue would the domestic government collect from the imports of ball pens due to this import duty of ₹10? ____________
Your answer:
Read the passage below, then answer Q25
Based on the above data, answer the given subquestions.
Q25NAT1.5 Marks·Write the number
End Term · 31 Aug 2025 (FN)Key ↓
How much revenue would the domestic government collect from the imports of ball pens due to this import duty of ₹10? _________________
Your answer:

Type 12 · asked 2 times · Externalities & public goods

Socially efficient number of beehives with a pollination externality

Read the passage below, then answer Q26
Based on the above data, answer the given subquestions.
Q26NAT2 Marks·Write the number
End Term · 31 Aug 2025 (AN)Key ↓
What should be the socially efficient number of hives that the beekeeper should maintain ____________
Your answer:
Read the passage below, then answer Q27
A beekeeper lives adjacent to an apple orchard. The orchard owner benefits from the bees because each hive pollinates about one acre of apple trees. The orchard owner pays nothing for this service, however, because the bees come to the orchard without his having to do anything. Because there are not enough bees to pollinate the entire orchard, the orchard owner must complete the pollination by artificial means, at a cost of $10 per acre of trees.
Beekeeping has a marginal cost MC=10+5Q, where Q is the number of beehives. Each hive yields $50 worth of honey.
Based on the above data, answer the given subquestions.
Q27NAT2 Marks·Write the number
End Term · 31 Aug 2025 (FN)Key ↓
What should be the socially efficient number of hives that the beekeeper should maintain ____________
Your answer:

Type 13 · asked 2 times · Externalities & public goods

Number of beehives the beekeeper keeps ignoring the orchard

Read the passage below, then answer Q28
Based on the above data, answer the given subquestions.
Q28NAT1 Mark·Write the number
End Term · 31 Aug 2025 (AN)Key ↓
How many beehives will the beekeeper maintain if we ignore the apple orchard ____________
Your answer:
Read the passage below, then answer Q29
A beekeeper lives adjacent to an apple orchard. The orchard owner benefits from the bees because each hive pollinates about one acre of apple trees. The orchard owner pays nothing for this service, however, because the bees come to the orchard without his having to do anything. Because there are not enough bees to pollinate the entire orchard, the orchard owner must complete the pollination by artificial means, at a cost of $10 per acre of trees.
Beekeeping has a marginal cost MC=10+5Q, where Q is the number of beehives. Each hive yields $50 worth of honey.
Based on the above data, answer the given subquestions.
Q29NAT1 Mark·Write the number
End Term · 31 Aug 2025 (FN)Key ↓
How many beehives will the beekeeper maintain if we ignore the apple orchard ____________
Your answer:

Type 14 · asked 2 times · Asymmetric information

MBA signalling: range of p for the MBA decision

Read the passage below, then answer Q30–Q31
Imagine that you have been working after college and now face the decision of whether or not to get an MBA at a prestigious institution. The cost of getting the MBA is 10. (Again, you can decide on the denomination, but rest assured that this sum includes the income lost over the course of the two years you will be studying!) Your future value is your stream of income, which depends on the strength of the labor market for the next decade. If the labor market is strong then your income value from having an MBA is 32, while your income value from your current status is 12. If the labor market is average then your income value from having an MBA is 16, while your income value from your current status is 8. If the labor market is weak then your income value from having an MBA is 12, while your income value from your current status is 4. Further assume that the probability of a strong labor market is p, of an average labor market is 0.5 and of a weak labor market is 0.5− p.
Based on the above data, answer the given subquestions.
Q30MCQ2 Marks·Choose one option
End Term · 31 Aug 2025 (AN)Key ↓
For which values of p will you decide not to get an MBA?
1. A
2. B
3. C
4. D
Q31MCQ2 Marks·Choose one option
End Term · 31 Aug 2025 (FN)Key ↓
For which values of p will you decide to get an MBA?
1. A
2. B
3. C
4. D

Type 15 · asked 2 times · Asymmetric information

MBA signalling: highest price the university can charge at p = 0.4

Read the passage below, then answer Q32–Q33
Imagine that you have been working after college and now face the decision of whether or not to get an MBA at a prestigious institution. The cost of getting the MBA is 10. (Again, you can decide on the denomination, but rest assured that this sum includes the income lost over the course of the two years you will be studying!) Your future value is your stream of income, which depends on the strength of the labor market for the next decade. If the labor market is strong then your income value from having an MBA is 32, while your income value from your current status is 12. If the labor market is average then your income value from having an MBA is 16, while your income value from your current status is 8. If the labor market is weak then your income value from having an MBA is 12, while your income value from your current status is 4. Further assume that the probability of a strong labor market is p, of an average labor market is 0.5 and of a weak labor market is 0.5− p.
Based on the above data, answer the given subquestions.
Q32NAT2 Marks·Write the number
End Term · 31 Aug 2025 (AN)Key ↓
If P=0.4, what is the highest price the university can charge for you to be willing to go ahead and get an MBA? ____________
Your answer:
Q33NAT2 Marks·Write the number
End Term · 31 Aug 2025 (FN)Key ↓
If p = 0.4, what is the highest price the university can charge for you to be willing to go ahead and get an MBA? ___________
Your answer:

Type 16 · asked 2 times · Monopoly pricing

Monopolist apartment owner: profit-maximising rent

Read the passage below, then answer Q34
Based on the above data, answer the given subquestions.
Q34NAT1 Mark·Write the number
End Term · 31 Aug 2025 (AN)Key ↓
What price would this monopolist will set? ____________
Your answer:
Read the passage below, then answer Q35
Recall the example of apartments’ market discussed in the week 1. Suppose the demand curve faced by a monopolist apartment owner who has 60 apartments is D(p) = 100−2p.
Based on the above data, answer the given subquestions.
Q35NAT1 Mark·Write the number
End Term · 31 Aug 2025 (FN)Key ↓
What price would this monopolist will set? ____________
Your answer:

Type 17 · asked 2 times · Monopoly pricing

Monopolist apartment owner: apartments rented

Read the passage below, then answer Q36
Based on the above data, answer the given subquestions.
Q36NAT1 Mark·Write the number
End Term · 31 Aug 2025 (AN)Key ↓
How many apartments will he offer for rent?____________
Your answer:
Read the passage below, then answer Q37
Recall the example of apartments’ market discussed in the week 1. Suppose the demand curve faced by a monopolist apartment owner who has 60 apartments is D(p) = 100−2p.
Based on the above data, answer the given subquestions.
Q37NAT1 Mark·Write the number
End Term · 31 Aug 2025 (FN)Key ↓
How many apartments will he offer for rent? _____________
Your answer:

Type 18 · asked 2 times · Monopoly pricing

Monopolist apartment owner with 40 apartments: rent set

Read the passage below, then answer Q38
Based on the above data, answer the given subquestions.
Q38NAT1 Mark·Write the number
End Term · 31 Aug 2025 (AN)Key ↓
What price would he set if he had 40 apartments? ____________
Your answer:
Read the passage below, then answer Q39
Recall the example of apartments’ market discussed in the week 1. Suppose the demand curve faced by a monopolist apartment owner who has 60 apartments is D(p) = 100−2p.
Based on the above data, answer the given subquestions.
Q39NAT1 Mark·Write the number
End Term · 31 Aug 2025 (FN)Key ↓
What price would he set if he had 40 apartments? _____________
Your answer:

Type 19 · asked 2 times · Monopoly pricing

Monopolist apartment owner with 40 apartments: apartments rented

Read the passage below, then answer Q40
Based on the above data, answer the given subquestions.
Q40NAT1 Mark·Write the number
End Term · 31 Aug 2025 (AN)Key ↓
How many would he rent if he had 40 apartments?____________
Your answer:
Read the passage below, then answer Q41
Recall the example of apartments’ market discussed in the week 1. Suppose the demand curve faced by a monopolist apartment owner who has 60 apartments is D(p) = 100−2p.
Based on the above data, answer the given subquestions.
Q41NAT1 Mark·Write the number
End Term · 31 Aug 2025 (FN)Key ↓
How many would he rent if he had 40 apartments? ______________
Your answer:

Type 20 · asked 2 times · Monopoly pricing

Profit-maximising monopoly price with constant MC and linear demand

Read the passage below, then answer Q42–Q43
A monopolist can produce at a constant average (and marginal) cost of AC = MC = $5. It faces a market demand curve given by Q = 53 – P.
Based on the above data, answer the given subquestions.
Q42NAT1 Mark·Write the number
Quiz 2 · 3 Aug 2025 (AN)Key ↓
Calculate the profit-maximizing price (in $) for this monopolist.
Your answer:
Q43NAT1 Mark·Write the number
End Term · 31 Aug 2025 (FN)Key ↓
Your answer:

Type 21 · asked 2 times · Monopoly pricing

Profit-maximising monopoly quantity with constant MC and linear demand

Read the passage below, then answer Q44–Q45
A monopolist can produce at a constant average (and marginal) cost of AC = MC = $5. It faces a market demand curve given by Q = 53 – P.
Based on the above data, answer the given subquestions.
Q44NAT1 Mark·Write the number
Quiz 2 · 3 Aug 2025 (AN)Key ↓
Calculate the profit-maximizing quantity for this monopolist.
Your answer:
Q45NAT1 Mark·Write the number
End Term · 31 Aug 2025 (FN)Key ↓
Your answer:

Type 22 · asked 2 times · Monopoly pricing

Monopoly profit with constant MC and linear demand

Read the passage below, then answer Q46–Q47
A monopolist can produce at a constant average (and marginal) cost of AC = MC = $5. It faces a market demand curve given by Q = 53 – P.
Based on the above data, answer the given subquestions.
Q46NAT1 Mark·Write the number
Quiz 2 · 3 Aug 2025 (AN)Key ↓
What will be the profit of this monopolist? Profit= ___________________
Your answer:
Q47NAT1 Mark·Write the number
End Term · 31 Aug 2025 (FN)Key ↓
What will be the profit of this monopolist? Profit = _____________
Your answer:

Type 23 · asked 2 times · Game theory & oligopoly

Correct statements about monopolistic competition

Q48MCQ1 Mark·Choose one option
End Term · 31 Aug 2025 (AN)Key ↓
What is true about monopolistic competition
1. AFirms compete by selling differentiated products that are highly, but not perfectly, substitutable
2. BEntry and exit are free in the market
3. CNone
4. DBoth the firms compete by selling differentiated products that are highly, but not perfectly, substitutable and entry and exit are free in the market
Q49MCQ1 Mark·Choose one option
End Term · 31 Aug 2025 (FN)Key ↓
Which of the following is true about monopolistic competition?
1. AFirms compete by selling differentiated products that are highly, but not perfectly substitutable
2. BThere is free entry and exit from the market
3. CBoth Firms compete by selling differentiated products that are highly, but not perfectly substitutable & There is free entry and exit from the market
4. DNone of these

Type 24 · asked 2 times · Consumer choice & elasticity

Is the consumer better off when income rises and a price falls?

Q50MCQ1 Mark·Choose one option
End Term · 31 Aug 2025 (AN)Key ↓
If the income of the consumer increases and the one of the prices decreases at the same time, the consumer will not necessarily be at least as well-off.
1. ATRUE
2. BFALSE
Q51MCQ1 Mark·Choose one option
End Term · 31 Aug 2025 (FN)Key ↓
If the income of the consumer increases and the one of the prices decreases at the same time, the consumer will necessarily be at least as well-off.
1. ATrue
2. BFalse

Type 25 · asked 2 times · Asymmetric information

When moral hazard occurs in principal-agent contracts

Q52MCQ1 Mark·Choose one option
End Term · 31 Aug 2025 (AN)Key ↓
Moral hazard occurs when contracts are written in such a way that
1. Athe interests of agent and principal converge
2. Bthe interests of agent and principal diverge
3. Cagents will wish to maximize the principal's utility
4. Dproduction and risk-bearing efficiency are achieved
Q53MCQ1 Mark·Choose one option
End Term · 31 Aug 2025 (FN)Key ↓
Moral hazard occurs when contracts are written in such a way that
1. Athe interests of agent and principal converge
2. Bthe interests of agent and principal diverge
3. Cagents will wish to maximize the principal's utility
4. Dproduction and risk-bearing efficiency are achieved

Type 26 · asked 2 times · Market equilibrium, taxes & subsidies

Equilibrium quantity after a per-unit tax

Read the passage below, then answer Q54
Based on the above data, answer the given subquestions.
Q54NAT1 Mark·Write the number
Quiz 2 · 3 Aug 2025 (AN)Key ↓
New equilibrium quantity after the incidence of tax Q^t = __________________
Your answer:
Read the passage below, then answer Q55
The market demand curve for pizzas is P=300-Q and the market supply curve is P=60+2Q. A tax of t=15 INR is imposed on one unit of pizza sold. Answer the given subquestions.
Q55MCQ0.5 Marks·Choose one option
End Term · 31 Aug 2025 (AN)Key ↓
The equilibrium quantity after the incidence of tax is
1. A
2. B
3. C
4. D

Type 27 · asked 2 times · Market equilibrium, taxes & subsidies

Price buyers pay after a per-unit tax

Read the passage below, then answer Q56
Based on the above data, answer the given subquestions.
Q56NAT1 Mark·Write the number
Quiz 2 · 3 Aug 2025 (AN)Key ↓
Price that buyers pay now will be P^B= ________________
Your answer:
Read the passage below, then answer Q57
The market demand curve for pizzas is P=300-Q and the market supply curve is P=60+2Q. A tax of t=15 INR is imposed on one unit of pizza sold. Answer the given subquestions.
Q57MCQ0.5 Marks·Choose one option
End Term · 31 Aug 2025 (AN)Key ↓
The new price that buyer pays after incidence of tax is
1. AP=220 INR
2. BP=190 INR
3. CP=180 INR
4. DP=225 INR

Type 28 · asked 2 times · Market equilibrium, taxes & subsidies

Net price sellers receive after a per-unit tax

Read the passage below, then answer Q58
Based on the above data, answer the given subquestions.
Q58NAT1 Mark·Write the number
Quiz 2 · 3 Aug 2025 (AN)Key ↓
Price that seller receives per unit will be P^S= _______________
Your answer:
Read the passage below, then answer Q59
The market demand curve for pizzas is P=300-Q and the market supply curve is P=60+2Q. A tax of t=15 INR is imposed on one unit of pizza sold. Answer the given subquestions.
Q59MCQ0.5 Marks·Choose one option
End Term · 31 Aug 2025 (AN)Key ↓
The net price received by the seller after incidence of tax
1. AP=220 INR
2. BP=225 INR
3. CP=190 INR
4. DP=210 INR

Type 29 · asked 2 times · Price discrimination & monopsony

Statements about first-degree (perfect) price discrimination

Q60MCQ0.5 Marks·Choose one option
Quiz 2 · 3 Aug 2025 (AN)Key ↓
When a monopolist practices perfect price discrimination, it eliminates only some portion of the deadweight loss.
1. ATrue
2. BFalse
Q61MCQ1 Mark·Choose one option
End Term · 31 Aug 2025 (AN)Key ↓
Choose the correct alternative
1. AFirst-degree price discrimination is the practice of attempting to price each unit at the consumer’s reservation price
2. BOutcome in First-degree price discrimination is not Pareto efficient
3. CBoth the first-degree price discrimination is the practice of attempting to price each unit at the consumer’s reservation price and outcome in First-degree price discrimination is not Pareto efficient
4. DNone

Official Key

Master Answer Key & Explanations

Official answer keys from IIT Madras BS past papers. Click any question to review.

Reveal Key

Q1B

Q2A

Q3B

Q47 or 7000

Q53

Q6B

Q7B

Q8A

Q9B

Q1050

Q1150

Q121250 or 1250000

Q131250 or 1250000

Q141250 or 1250000

Q151250 or 1250000

Q1660 or 60000

Q1760 or 60000

Q1820 or 20000

Q1920 or 20000

Q2040 or 40000

Q2140 or 40000

Q22250000 or 250

Q23250000 or 250

Q24400 or 400000

Q25400 or 400000

Q266

Q2710

Q284

Q298

Q30D

Q31B

Q322.8

Q332.8

Q3425

Q3525

Q3650

Q3750

Q3830

Q3930

Q4040

Q4140

Q4229

Q4329

Q4424

Q4524

Q46576

Q47576

Q48D

Q49C

Q50B

Q51A

Q52B

Q53B

Q546 or 6000

Q55C

Q564

Q57D

Q582

Q59D

Q60B

Q61A

Detailed Answer Notes & Working

Q4Answer: 7 or 7000: Official answer key accepts 7 or 7000.
Q12Answer: 1250 or 1250000: Official answer key accepts 1250 or 1250000.
Q13Answer: 1250 or 1250000: Official answer key accepts 1250 or 1250000.
Q14Answer: 1250 or 1250000: Official answer key accepts 1250 or 1250000.
Q15Answer: 1250 or 1250000: Official answer key accepts 1250 or 1250000.
Q16Answer: 60 or 60000: Official answer key accepts 60 or 60000.
Q17Answer: 60 or 60000: Official answer key accepts 60 or 60000.
Q18Answer: 20 or 20000: Official answer key accepts 20 or 20000.
Q19Answer: 20 or 20000: Official answer key accepts 20 or 20000.
Q20Answer: 40 or 40000: Official answer key accepts 40 or 40000.
Q21Answer: 40 or 40000: Official answer key accepts 40 or 40000.
Q22Answer: 250000 or 250: Official answer key accepts 250000 or 250.
Q23Answer: 250000 or 250: Official answer key accepts 250000 or 250.
Q24Answer: 400 or 400000: Official answer key accepts 400 or 400000.
Q25Answer: 400 or 400000: Official answer key accepts 400 or 400000.
Q54Answer: 6 or 6000: Official answer key accepts 6 or 6000.

Questions and answer keys are reproduced from the official IIT Madras BS papers. Topics and repeated question types are BTechi’s own grouping. BTechi is not affiliated with IIT Madras.