6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

Simple Interest received by a person in 10 years on a principal of Rs 9500 is 130% of the principal. What is the rate of interest (in %) per annum?

A) 12	B) 13
C) 15	D) 19

Answer & Explanation Answer: B) 13

Explanation:

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Filed Under: Simple Interest
Exam Prep: Bank Exams

5 3091

Q:

A does 75% of a work in 25 days. He then calls in B and they together finish the remaining work in 5 days. How long B alone would take to do the whole work?

A) 50 days	B) 80 days
C) 24 days	D) 37.5 days

Answer & Explanation Answer: A) 50 days

Explanation:

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Filed Under: Time and Work
Exam Prep: Bank Exams

5 3086

Q:

What is the average of first 11 multiples of 11?

A) 22	B) 44
C) 55	D) 66

Answer & Explanation Answer: D) 66

Explanation:

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Filed Under: Numbers
Exam Prep: Bank Exams

6 3079

Q:

5 + 2 x 10 =

A) 70	B) 20
C) 25	D) 52

Answer & Explanation Answer: C) 25

Explanation:

According to BODMAS rule,

After multiplication only, addition is done.

Hence,

5 + 2 x 10 = 5 + 20 = 25.

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

4 3078

Q:

Concept of Nehative Work

A tub can be filed in 20 minutes but there is a lekage in it which can empty the full tub in 60 minutes. In how many minutes it can be filled?

Answer

Filling efficiency = 5%

Emptying efficiency = 1.66%

Net efficiency = 5-1.66 = 3.33%

Therefore, Required time to fil the tub =100/3.33= 30 minutes

Workspace

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Subject: Time and Work

2 3076

Q:

Solve the triangle b=36 a=38 c=18 for perimeter of the triangle?

A) 74 units	B) 92 units
C) 56 units	D) 54 units

Answer & Explanation Answer: B) 92 units

Explanation:

We know, the perimeter of a triangle = sum of all the sides of a triangle = a + b + c

Here given that sides a = 38, b= 36 and c = 18

solve_the_triangle_b36_a38_c181537423406.jpg image

Now, perimeter of the triangle = a + b + c = 38 + 36 + 18 = 92 units.

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Filed Under: Volume and Surface Area
Exam Prep: AIEEE , Bank Exams , CAT , GATE
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5 3074

Q:

K men agree to donate a gift of Rs. L to trust. If three men drop out how much more will each have to contribute towards the purchase of the gift ?

A) L / (k-3)	B) k / (L-3)
C) 2K / 3L-K	D) 3L / K(K-3)

Answer & Explanation Answer: D) 3L / K(K-3)

Explanation:

Intial contribution = L/K
After 3 men drop, then contribution =L/K-3
The amount more to pay in contribution = $\frac{L}{K - 3} - \frac{L}{K}$

= $\frac{3 L}{K (K - 3)}$

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

3 3069

Q:

In a single throw with 2 dices, what is probability of neither getting an even number on one and nor a multiple of 3 on other?

A) 11/36	B) 25/36
C) 5/6	D) 1/6

Answer & Explanation Answer: B) 25/36

Explanation:

We first calculate the probability of getting an even number on one and a multiple of 3 on other,Here, n(s) = 6x6 = 36 and

Quantitative Aptitude - Arithmetic Ability Questions

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