6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

Find the HCF of 865 and 2595.

A) 25	B) 2595
C) 865	D) 5

Answer & Explanation Answer: C) 865

Explanation:

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Filed Under: HCF and LCM
Exam Prep: Bank Exams

12 2535

Q:

Simplify : $\frac{69 X 69 X 69 - 65 X 65 X 6}{69 X 69 + 69 X 65 + 65 X 65}$

A) 1	B) 4
C) 0.216	D) 0.164

Answer & Explanation Answer: B) 4

Explanation:

69 –65 = 4

69

–

65 = 4

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Filed Under: Simplification
Exam Prep: Bank Exams

0 2535

Q:

A trader had 22 quintals of wheat. He sold a part of it at 23% profit and the rest at 33% profit, so that he made a total profit of 27%. How much wheat did he sell at 33% profit?

A) 1320 kg	B) 440 kg
C) 880 kg	D) 1760 kg

Answer & Explanation Answer: C) 880 kg

Explanation:

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Filed Under: Profit and Loss
Exam Prep: Bank Exams

7 2535

Q:

The ratio of volume of a cone to that of a cylinder if cylinder radius is reduced by 4 times and its height increased by 8 times of that of the cone, is -

A) 3:2	B) 2:3
C) 5:7	D) 7:5

Answer & Explanation Answer: B) 2:3

Explanation:

Ans. Let radius of the base and height of the cone be ‘r’ & ‘h’ respectively.

Then volume of cone = πr2h/3 For cylinder, radius is reduced by 4 times = r/4 And, height is increased by 8 folds = 8h Volume of cylinder = πR2H = π(r/4)2 (8h) = (16/8)πr2h = πr2h/2 Ratio of volume of cone to volume of cylinder = (πr2h/3) : (πr2h/2) Or, Ratio = 2 : 3.

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Filed Under: Quantitative Aptitude - Arithmetic Ability
Exam Prep: AIEEE , Bank Exams , GATE

1 2533

Q:

In a city, 40% of the people are illiterate and 60% are poor. Among the rich, 10% are illiterate. The percentage of the illiterate poor population is

A) 36	B) 60
C) 50	D) 40

Answer & Explanation Answer: B) 60

Explanation:

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Filed Under: Percentage
Exam Prep: Bank Exams

2 2533

Q:

(91 + 92 + 93 + ......... +110) is equal to

A) 4020	B) 2010
C) 6030	D) 8040

Answer & Explanation Answer: B) 2010

Explanation:

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Filed Under: Problems on Numbers
Exam Prep: Bank Exams

5 2529

Q:

If $\frac{a}{b + c} = \frac{b}{c + a} = \frac{C}{b + a}$ then which one of the following statements is correct?

A) Each fraction is equal to 1 or -1	B) Each fraction is equal to 1/2 or 1
C) Each fraction is equal to 1/2 or -1	D) Each fraction is equal to 1.2 only

Answer & Explanation Answer: C) Each fraction is equal to 1/2 or -1

Explanation:

a/(b+c) = b/(c+a) = c/(a+b)

Taking reciprocal and adding 1 to each ratio we get;

(b+c)/a + 1 = b/(c+a) + 1 = c/(a+b) + 1

Or (a+b+c)/a = (a+b+c)/b = (a+b+c)/c

So this can only be equal when a=b=c or a+b+c = 0

When a=b=c we get

a/(b+c)= ½When a+b+c = 0 we get

b+c = -a

So a/(b+c) = -1

So the ratios are ½ or -1

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Filed Under: Simplification
Exam Prep: Bank Exams

0 2527

Q:

If 4x = √5+ 2, then the value of x - 1/16x is

A) 1	B) -1
C) 4	D) 2√5

Quantitative Aptitude - Arithmetic Ability Questions

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