Home › Subjects › Quantitative Aptitude

Quantitative Aptitude

Quantitative aptitude questions for competitive exams

429 Q 7 Topics Take Test

Difficulty: All Easy Medium Hard 191–200 of 429

Topics in Quantitative Aptitude

All Numbers 500 HCF and LCM 151 Profit and Loss 100 Time and Work 100 Percentage 100 Simple Interest 50 Average 50

Q.191 Easy Numbers

A boat's speed in still water is 15 km/h and current speed is 3 km/h. What is the ratio of downstream to upstream speeds?

A 2:1

B 3:2

C 4:3

D 5:3

Correct Answer: B. 3:2

EXPLANATION

Downstream = 15 + 3 = 18. Upstream = 15 - 3 = 12. Ratio = 18:12 = 3:2.

Take Test

Q.192 Easy Numbers

A man buys 50 pens at Rs. 3 each and sells them at Rs. 3.50 each. What is his profit percentage?

A 14.28%

B 16.67%

C 18.5%

D 20%

Correct Answer: B. 16.67%

EXPLANATION

CP = 50 × 3 = 150. SP = 50 × 3.5 = 175. Profit % = (25/150) × 100 = 16.67%.

Take Test

Q.193 Easy Numbers

A number when increased by 15% becomes 575. What is the original number?

A 500

B 550

C 460

D 480

Correct Answer: A. 500

EXPLANATION

Let original number = x. x × 1.15 = 575. x = 575/1.15 = 500.

Take Test

Q.194 Easy Numbers

A person invested Rs. 10000 in a scheme. After 2 years at 10% compound interest, the amount becomes:

A Rs. 12100

B Rs. 12000

C Rs. 11000

D Rs. 11500

Correct Answer: A. Rs. 12100

EXPLANATION

Amount = P(1 + R/100)^T = 10000(1.1)^2 = 10000 × 1.21 = Rs. 12100.

Take Test

Q.195 Easy Numbers

A boat takes 4 hours to travel 48 km downstream and 6 hours to travel the same distance upstream. What is the speed of the current?

A 1 km/h

B 2 km/h

C 3 km/h

D 4 km/h

Correct Answer: B. 2 km/h

EXPLANATION

Downstream speed = 48/4 = 12 km/h. Upstream speed = 48/6 = 8 km/h. Current speed = (12 - 8)/2 = 2 km/h.

Take Test

Q.196 Easy Numbers

Simple Interest on Rs. 5000 at 8% per annum for 2.5 years is:

A Rs. 800

B Rs. 900

C Rs. 1000

D Rs. 1200

Correct Answer: C. Rs. 1000

EXPLANATION

SI = (P × R × T) / 100 = (5000 × 8 × 2.5) / 100 = 100000/100 = Rs. 1000.

Take Test

Q.197 Easy Numbers

A pipe can fill a tank in 6 hours and empty it in 10 hours. If both pipes are opened together, how long will it take to fill the tank?

A 10 hours

B 15 hours

C 20 hours

D 25 hours

Correct Answer: B. 15 hours

EXPLANATION

Net rate = 1/6 - 1/10 = 5/30 - 3/30 = 2/30 = 1/15. Time = 15 hours.

Take Test

Q.198 Easy Numbers

If a man works alone, he can complete a task in 12 days. If his wife works alone, she can complete it in 18 days. Working together, in how many days will they complete the task?

A 7.2 days

B 8.4 days

C 9.6 days

D 10 days

Correct Answer: A. 7.2 days

EXPLANATION

Combined rate = 1/12 + 1/18 = 3/36 + 2/36 = 5/36. Time = 36/5 = 7.2 days.

Take Test

Q.199 Easy Numbers

A merchant buys articles at Rs. 80 each and sells them at a profit of 37.5%. What is the selling price?

A Rs. 110

B Rs. 115

C Rs. 120

D Rs. 125

Correct Answer: A. Rs. 110

EXPLANATION

SP = CP + Profit = 80 + (80 × 37.5/100) = 80 + 30 = Rs. 110.

Take Test

Q.200 Easy Numbers

A number is increased by 25% and then decreased by 20%. What is the net change in percentage?

A 0%

B 5%

C 10%

D 15%

Correct Answer: A. 0%

EXPLANATION

Let the number be 100. After 25% increase: 125. After 20% decrease on 125: 125 × 0.8 = 100. Net change = 0%.

Take Test

1…18 19 20 21 22…43

All Subjects & Topics

Entrance Exams

Govt. Exams

Teacher Exams

Subjects

Quick Links

Quantitative Aptitude