6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

Area of 4 walls of a cuboid is 57 sq m, if its length is 5.5 m and height is 3 m. What is its breadth (in m)?

A) 4.5	B) 4
C) 3	D) 3.5

Answer & Explanation Answer: B) 4

Explanation:

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Filed Under: Area
Exam Prep: Bank Exams

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Q:

If A = (-14 + 4) and B = 4 - 14, then AB =

A) 0	B) -100
C) 100	D) -1

Answer & Explanation Answer: C) 100

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Filed Under: Simplification
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Q:

In the following question, select the odd word from the given alternatives.

A) Chennai	B) Daman
C) Raipur	D) Shimla

Answer & Explanation Answer: B) Daman

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Filed Under: Odd Man Out
Exam Prep: Bank Exams

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Q:

If p and q are the roots of the equation x2 –15x + r = 0 and p –q = 1, then what is the value of r ?

A) 55	B) 56
C) 60	D) 64

Answer & Explanation Answer: B) 56

Explanation:

In the below equation,

x2–15x + r = 0

sum of roots = p + q = -(-15)/1 = 15 (sum of roots for equation ax2+ bx + c is -b/a)

product of roots = pq = r/1 = r (product of roots for equation ax2+ bx + c is c/a)

given p –q = 1

also we know that p+q = 15

subtracting the squares of both

(p+q)2 + (p-q)2 = 15^2–1

p2 + q2 + 2pq –p2 –q2 +2pq = 225 -1

4pq = 224

4r = 224

r = 56

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Filed Under: Simplification
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Q:

Marked price of an item is Rs 400. On purchase of 1 item discount is 6% and on purchase of 4 items discount is 24%. Rachita buys 5 items, what is the effective discount?

A) 34 percent	B) 20.4 percent
C) 12.8 percent	D) 23.25 percent

Answer & Explanation Answer: B) 20.4 percent

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Filed Under: Percentage
Exam Prep: Bank Exams

2 1772

Q:

A profit of Rs. 960 is divided between A and B in the ratio 1/3:1/2. The difference of their profit is :

A) Rs.120	B) Rs.160
C) Rs.180	D) Rs.240

Answer & Explanation Answer: D) Rs.240

Explanation:

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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

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Q:

If m n = 2 , mn = 15 , (m , n > 0) then the value of $(m^{2} - n^{2}) (m^{3} - n^{3})$

A) 1856	B) 1658
C) 1586	D) 1568

Answer & Explanation Answer: D) 1568

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

A milkman buys milk at Rs 25 per litre and adds 1/4 of water to it and sells the mixture at Rs 26 per litre. His gain (in %) is?

A) 25	B) 20
C) 30	D) 15

Quantitative Aptitude - Arithmetic Ability Questions

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