6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

If the side of square is increased by 6%, then what will be the percentage increase in its area?

A) 3.2	B) 12.04
C) 12.12	D) 12.36

Answer & Explanation Answer: D) 12.36

Explanation:

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Filed Under: Percentage
Exam Prep: Bank Exams

2 3919

Q:

Suresh starts working as a analyst on an annual salary of Rs. 160000. If he receives a 15% pay-rise each year, the number of years he has worked for the company, when his annual salary became Rs. 279841 is

A) 3.5 yrs	B) 4 yrs
C) 4.5 yrs	D) 5 yrs

Answer & Explanation Answer: B) 4 yrs

Explanation:

From the given data in the question,

$279841 = 160000 x {(1 + \frac{15}{100})}^{t} \frac{279841}{160000} = {(\frac{115}{100})}^{t}$

t = 4 years.

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Filed Under: Percentage
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO

6 3915

Q:

Agra and Delhi are 160 km apart. A train leaves Agra for Delhi and at the same time another train leaves Delhi for Agra. Both the trains meet 5 hrs after they start moving. If the train travelling from Agra to Delhi travels 6 km/hr faster than the other train, find the speed of the faster train?

A) 19 kmph	B) 13 kmph
C) 7 kmph	D) 9 kmph

Answer & Explanation Answer: A) 19 kmph

Explanation:

Let the speed of the slower train = p kmph

ATQ,

Speed of the faster train = (p + 6) kmph

Then,

(p + p + 6) x 5 = 160

10p + 30 = 160

10p = 130

p = 13 kmph

Then, speed of the faster train = p + 6 = 13 + 6 = 19 kmph.

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Filed Under: Problems on Trains
Exam Prep: AIEEE , Bank Exams , CAT , GATE
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8 3912

Q:

5% of 40,000 is

A) 20000	B) 2000
C) 200	D) 20

Answer & Explanation Answer: B) 2000

Explanation:

5% of 40,000 = $\frac{5}{100} \times 40, 000 = 5 \times 400 = 2, 000$

Hence, 5% of 40,000 = 2,000.

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Filed Under: Percentage
Exam Prep: CAT , Bank Exams , AIEEE
Job Role: Bank PO , Bank Clerk , Analyst

7 3911

Q:

If $a = \frac{\sqrt{5} + 1}{\sqrt{5} - 1} b = \frac{\sqrt{5} - 1}{\sqrt{5} + 1} t h e n f i n d t h e v a l u e o f [\frac{a^{2} + a b + b^{2}}{a^{2} - a b + b^{2}}] i s : :$

A) 3/4	B) 4/3
C) 3/5	D) 5/3

Answer & Explanation Answer: B) 4/3

Explanation:

By simplifying, we get 4/3

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Filed Under: Square Roots and Cube Roots
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Bank Clerk , Bank PO

7 3905

Q:

16 of 225 is =

A) 7.11	B) 7.21
C) 6.87	D) 7.58

Answer & Explanation Answer: A) 7.11

Explanation:

16 of 225 is =

$16 = p \times \frac{225}{100} p = \frac{1600}{225} = 7.1111$

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Filed Under: Percentage
Exam Prep: AIEEE , Bank Exams , CAT , GATE
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9 3904

Q:

Solve this inequality 3p - 16 < 20?

A) p >= 12	B) p <= 11/3
C) p < 12	D) p > 11/3

Answer & Explanation Answer: C) p < 12

Explanation:

The given inequality is 3p - 16 < 20

For solving this inequality, follow these steps

Now add 16 on both sides

we get 3p - 16 + 16 < 20 + 16

=> 3p < 36

Now divide the above eqn with 3 on both sides

we get, 3p/3 < 36/3

p < 12.

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Filed Under: Simplification
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO

4 3902

Q:

If there is a total of 104 weekly instalments and a third deposit, find the interest rate

A) 2.82	B) 3.82
C) 4.82	D) 5.82

Quantitative Aptitude - Arithmetic Ability Questions

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