6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

Simplify the equation $\frac{{(0.73)}^{3} + {(0.27)}^{3}}{{(0.73)}^{2} + {(0.27)}^{2} - (0.73) \times (0.27)}$

A) 1	B) 0.4087
C) 0.73	D) 0.27

Answer & Explanation Answer: A) 1

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

0 1939

Q:

If Shubhangi walks with a speed of 2 km/hr, then she reaches her school 5/2 minutes late but if she walks with a speed of 2.5 km/hr, then she reach 5 minutes before the scheduled time. What is the distance (in km) of her school from her house?

A) 1.025	B) 1.125
C) 1.25	D) 1.5

Answer & Explanation Answer: C) 1.25

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Filed Under: Time and Distance
Exam Prep: Bank Exams

3 1939

Q:

A can complete a task alone in 8 days, while B takes 12 days to do it by herself. Together with C it takes them 4 days to complete the work. If C and D together can complete the task in 15 days, then how many days will D need to complete the task by herself?

A) 36	B) 32
C) 40	D) 30

Answer & Explanation Answer: C) 40

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Filed Under: Time and Work
Exam Prep: Bank Exams

2 1939

Q:

A cuboid has dimensions 8 cm x 10 cm x 12 cm. It is cut into small cubes of side 2 cm. What is the percentage increase in the total surface area?

A) 286.2	B) 314.32
C) 250.64	D) 386.5

Answer & Explanation Answer: D) 386.5

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Filed Under: Volume and Surface Area
Exam Prep: Bank Exams

1 1939

Q:

Chandan is 2 years older than Ankit but 1 year younger than Sumit. Ankit is twice as old as Khushboo. If Khushboo's age is 25 years, what is the age (in years) of Sumit?

A) 51	B) 53
C) 52	D) 55

Answer & Explanation Answer: B) 53

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Filed Under: Problems on Ages
Exam Prep: Bank Exams

3 1939

Q:

The sum of length, breadth and height of a cuboid is 22 cm and the length of its diagonal is 14 cm.
What is the surface area of the cuboid?

A) 288 sq.cm	B) 216 sq.cm
C) 144 sq.cm	D) Cannot be determined due to insufficient data

Answer & Explanation Answer: A) 288 sq.cm

Explanation:

Let lengths, breadth and height of cuboid be l, b and h respectively

According to question

l+b+h = 22cm......(i)

and

√(l^2+b^2+h^2) = 14cm .....(ii)

Surface area of cuboid = 2(lb+bh+lh)

Squaring eq (i) gives

l^{2} + b^{2} + h^{2}

+ 2(lb+bh+lh) = 484

Substituting l^2+b^2+h^2 from eq (i)

2(lb+bh+lh) = 484 -196 = 288 sq.cm

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Filed Under: Volume and Surface Area
Exam Prep: Bank Exams

0 1938

Q:

The area and the length of one of the diagonals of a rhombus is 84 cm² and 7 cm respectively. Find the length of its other diagonal (in cm).

A) 12	B) 24
C) 48	D) 36

Answer & Explanation Answer: B) 24

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Filed Under: Area
Exam Prep: Bank Exams

1 1938

Q:

At 20% discount the selling price of an article is Rs 2400, what is the selling price (in Rs) if the discount is 32.5%?

A) 2125	B) 2225
C) 2025	D) 2325

Quantitative Aptitude - Arithmetic Ability Questions

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