6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

The difference between the present ages of Avanthi and Kapil is 9 years. After 7 years, Kapil’s age is twice of Avanthi’s age. What will be Kapil’s age after 4 years?

A) 15	B) 16
C) 18	D) 20

Answer & Explanation Answer: A) 15

Explanation:

Let the present ages of Kapil and Avanthi be K & A

Given difference in their ages = K - A = 9 years ...........(1)

After 7 years, K + 7 = 2(A + 7) ......(2)

K + 7 = 2A + 14

K - 2A = 7 ............(3)

K - A = 9 ....(1)

From (1) & (3),

-A = -2

=> A = 2 years

=> K = 9 + 2 = 11 years

Required, age of Kapil after 4 years = 11 + 4 = 15 years.

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Filed Under: Problems on Ages
Exam Prep: AIEEE , Bank Exams , CAT , GATE
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3 3021

Q:

Giving two successive discounts of 25% is equal to giving one discount of ________%.

A) 43.75	B) 56.25
C) 50	D) 45

Answer & Explanation Answer: A) 43.75

Explanation:

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Filed Under: Percentage
Exam Prep: Bank Exams

2 3021

Q:

While selling a router, a shopkeeper gives a discount of 15%. If he gives a discount of 20%, he earns Rs. 51 less as profit. What is the original marked price of the router?

A) Rs. 1000	B) Rs. 1020
C) Rs. 1040	D) Rs. 980

Answer & Explanation Answer: B) Rs. 1020

Explanation:

Let the marked price of the router be Rs. P

From the given data,

$P x \frac{85}{100} - P x \frac{80}{100} = 51 P x \frac{5}{100} = 51 \Rightarrow P = \frac{5100}{5} = 1020$

Hence, the original marked price of the router is Rs. 1020.

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Filed Under: Profit and Loss
Exam Prep: AIEEE , Bank Exams , CAT , GATE
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7 3019

Q:

One pipe can fill a tank three times as fast as another pipe. If together the two pipes can fill tank in 36 min, then the slower pipe alone will be able to fill the tank in ?

A) 85 min	B) 92 min
C) 187 min	D) 144 min

Answer & Explanation Answer: D) 144 min

Explanation:

Let the slower pipe alone fill the tank in x min.

Then, faster pipe will fill it in x/3 min.

1/x + 3/x = 1/36

4/x = 1/36 => x = 144 min.

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Filed Under: Pipes and Cistern
Exam Prep: GATE , CAT , Bank Exams
Job Role: Bank PO , Bank Clerk

7 3019

Q:

Two partners M and N buy a car. M pays his share of 3/7th of the total cost of the car. M pays Rs. 31,540 less than N. What is the cost of the car?

A) Rs. 2,32,680	B) Rs. 2,03,175
C) Rs. 2,20,780	D) Rs. 1,85,780

Answer & Explanation Answer: C) Rs. 2,20,780

Explanation:

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Filed Under: Partnership
Exam Prep: Bank Exams

11 3014

Q:

70000 a year is how much an hour?

A) 80	B) 8
C) 0.8	D) 0.08

Answer & Explanation Answer: B) 8

Explanation:

Given for year = 70000

=> 365 days = 70000

=> 365 x 24 hours = 70000

=> 1 hour = ?

70000/365x24 = 7.990 = 8

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Filed Under: Time and Work
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3 3013

Q:

Two buses travel to a place at 45 km/hr and 60 km/hr respectively. If the second bus takes 51⁄2 hours less than the first for the journey, the length of the journey is:

A) 900 km	B) 940 km
C) 990 km	D) 1300 km

Answer & Explanation Answer: C) 990 km

Explanation:

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Filed Under: Time and Distance
Exam Prep: Bank Exams

4 3012

Q:

If w : 0.80 :: 9 : 6, w = ?

A) 2.5	B) 1.1
C) 3.3	D) 1.2

Quantitative Aptitude - Arithmetic Ability Questions

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