6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

In a bucket, paint and oil are in the ratio 7 : 5. 24 litres of mixture is drawn off and 24 litres of oil is added. If the ratio of paint and oil becomes 1 : 1, then how many litres of paint was contained in the bucket initially?

A) 49	B) 63
C) 84	D) 98

Answer & Explanation Answer: D) 98

Explanation:

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Filed Under: Alligation or Mixture
Exam Prep: Bank Exams

0 3166

Q:

How many numbers of five digits can be formed by using the digits 1, 0, 2, 3, 5, 6 which are between 50000 and 60000 without repeating the digits?

A) 120	B) 240
C) 256	D) 360

Answer & Explanation Answer: A) 120

Explanation:

Required number of 5 digit numbers can be formed by using the digits 1, 0, 2, 3, 5, 6 which are between 50000 and 60000 without repeating the digits are

5 x 4 x 3 x 2 x 1 = 120.

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Filed Under: Permutations and Combinations
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO

8 3164

Q:

The HCF of two numbers is 11 and their LCM is 330. If one of the number is 55. Find the other number.

A) 33	B) 66
C) 44	D) 77

Answer & Explanation Answer: B) 66

Explanation:

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Filed Under: HCF and LCM
Exam Prep: AIEEE , Bank Exams , CAT

4 3163

Q:

The true discount on Rs.2562 due 4 months hence is Rs.122.The rate % is?

A) 12%	B) 13 (1/3)%
C) 15%	D) 14%

Answer & Explanation Answer: A) 12%

Explanation:

P.W = Rs.( 2562 - 122) = Rs.2440

S.I on Rs.2440 for 4 months is Rs.122

Rate = (100 x 122)/(2440 x [1/3]) % = 15%

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Filed Under: True Discount

21 3162

Q:

If (x/a) + (y/b) = 3 and (x/b) – (y/a) = 9, then what is the value of x/y?

A) ( b + 3 a)/( a – 3 b)	B) ( a + 3 b)/( b – 3 a)
C) (1 + 3 a)/( a + 3 b)	D) ( a + 3 b2)/( b – 3 a2)

Answer & Explanation Answer: A) ( b + 3 a)/( a – 3 b)

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

5 3159

Q:

Find the number which multiplied by 15 is increased by 56 ?

A) 6	B) 4
C) 3	D) 12

Answer & Explanation Answer: B) 4

Explanation:

Let the number be x. Then,

15x - x = 56

x = 4

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Filed Under: Problems on Numbers
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Bank Clerk , Bank PO

2 3158

Q:

A group consists of 4 couples in which each of the 4 boys have one girl friend.In how many ways they can be arranged in a straight line such that boys and girls occupies alternate positions?

Answer

Answer : 1152

Total positions are 8.

In that boys can be arranged in 4 places and girls can be arranged in 4 places and hence this can be done in 2 ways.

i.e => 4! x 4! x 2 = 24 x 24 x 2=1152.

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Subject: Permutations and Combinations Exam Prep: CAT
Job Role: Bank PO

10 3155

Q:

To make a profit of 20% the selling price of the good is Rs. 240. The cost price of the good is,

A) Rs. 200	B) Rs. 210
C) Rs. 220	D) Rs. 230

Quantitative Aptitude - Arithmetic Ability Questions

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