6500+ Quantitative Aptitude Questions and Answers With Explanation

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 3114

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 3106

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 3105

Q:

In a 100 m race, A can give B 10 m and C 28 m. In the same race B can give C:

A) 18 m	B) 20 m
C) 27m	D) 9 m

Answer & Explanation Answer: B) 20 m

Explanation:

A : B = 100 : 90.

A : C = 100 : 72.

B:C = B/A*A/C = 90/100*100/72 = 90/72

When B runs 90 m, C runs 72 m.

When B runs 100 m, C runs (72/90*100)m = 80m

B can give C 20 m.

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Filed Under: Races and Games

5 3105

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
Job Role: Analyst , Bank Clerk , Bank PO

5 3100

Q:

By selling 90 pens for Rs 80 a man loses 20%. What should be the selling price (in Rs) of 90 pens for 20% profit?

A) 90	B) 100
C) 110	D) 120

Answer & Explanation Answer: D) 120

Explanation:

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Filed Under: Profit and Loss
Exam Prep: Bank Exams

12 3099

Q:

The difference between cost price and selling price is Rs 451. If loss percentage is 11%, then what is the selling price (in Rs)?

A) 3254	B) 3649
C) 3857	D) 4100

Answer & Explanation Answer: B) 3649

Explanation:

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Filed Under: Profit and Loss
Exam Prep: Bank Exams

7 3097

Q:

What is the average of first 11 multiples of 11?

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

Quantitative Aptitude - Arithmetic Ability Questions

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