6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

On a certain date, Pakistan has a success rate of 60% against India in all the ODIs played between the two countries. They lost the next 30 ODIs in a row to India and their success rate comes down to 30%. The total number of ODIs played between the two countries is

A) 50	B) 45
C) 60	D) 30

Answer & Explanation Answer: C) 60

Explanation:

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Filed Under: Percentage
Exam Prep: Bank Exams

2 1944

Q:

A bag has Rs.51.25 in the form of 2-rupee, 50-paise and 25-paise coins in the ratio of 3:5:7. What is the total number of 50-paise coins?

A) 15	B) 35
C) 25	D) 5

Answer & Explanation Answer: C) 25

Explanation:

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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

1 1944

Q:

If ${(x / y)}^{a - 4} = {(y / x)}^{2 a - 5}$ , then what is the relation between x and y?

A) x > y	B) Cannot be determined
C) x < y	D) x = y

Answer & Explanation Answer: B) Cannot be determined

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

0 1943

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 1942

Q:

Giving two successive discounts of 20% is same as giving one discount of ________ %.

A) 36	B) 40
C) 44	D) 50

Answer & Explanation Answer: A) 36

Explanation:

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Filed Under: Percentage
Exam Prep: Bank Exams

0 1942

Q:

What approximate value should come in place of the question mark (?) in the following equation (Note: You are not expected to calculate the exact value)? √580×∛510+ 49.999 x 3.999=?

A) 384	B) 392
C) 410	D) 372

Answer & Explanation Answer: B) 392

Explanation:

Take nearest values
√580×∛510+ 49.999 x 3.999=?
24x 8 + 200 = 392

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Filed Under: Simplification
Exam Prep: Bank Exams
Job Role: Bank PO , Bank Clerk

0 1942

Q:

A complete factorisation of $x^{4} + 64$ is

A) (x2 + 8)2	B) (x2 + 8)(x2 - 8)
C) (x2 - 4x + 8)(x2 -4x - 8)	D) (x2 + 4x + 8)(x2 - 4x + 8)

Answer & Explanation Answer: D) (x2 + 4x + 8)(x2 - 4x + 8)

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

0 1942

Q:

Two bottles contain acid and water in the ratio 2 : 3 and 1 : 2 respectively. These are mixed in the ratio 1 : 3. What is the ratio of acid and water in the new mixture ?

A) 7:13	B) 11:57
C) 23:37	D) 1:3

Quantitative Aptitude - Arithmetic Ability Questions

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