6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

If $\tan 45^{0} = c o t \emptyset, t h e n t h e v a l u e o f \emptyset, i n r a d i a n s i s$

A) π	B) π9
C) π2	D) π12

Answer & Explanation Answer: B) π9

Explanation:

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Filed Under: Quantitative Aptitude - Arithmetic Ability

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Q:

In what ratio rice costing Rs 14/kg mixed with another rice costing Rs 11/kg to get the mixture costing Rs 11.6/kg?

A) 2 : 5	B) 1 : 4
C) 1 : 3	D) 1 : 5

Answer & Explanation Answer: D) 1 : 5

Explanation:

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Filed Under: Alligation or Mixture
Exam Prep: Bank Exams

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Q:

The simple and compound interest that can be earned in two years at the same rate is Rs 1500 and Rs 1575 respectively. What is the rate (% per annum) of interest?

A) 8	B) 10
C) 12	D) 5

Answer & Explanation Answer: B) 10

Explanation:

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Filed Under: Simple Interest
Exam Prep: Bank Exams

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Q:

The average height of 50 bats is 126 cm. Some bats of average height 120 cm are removed. If the new average height is 130 cm, then how many bats are remaining?

A) 12	B) 20
C) 16	D) 30

Answer & Explanation Answer: D) 30

Explanation:

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Filed Under: Average
Exam Prep: Bank Exams

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Q:

Consider two-digit numbers which remain the same when the digits interchange their positions. What is the average of such two-digit numbers?

A) 33	B) 44
C) 55	D) 66

Answer & Explanation Answer: C) 55

Explanation:

All such 2 digit numbers are 11,22,33,44....... upto 99

Forms an AP

So sum = n/2(a+l)

= 9/2(11+99)

Average = sum/9 = ½(11+99) = 55

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Filed Under: Numbers
Exam Prep: Bank Exams

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Q:

The orthocentre of an obtuseangled triangle lies

A) inside the triangle	B) outside the triangle
C) on one side of a triangle	D) none of these

Answer & Explanation Answer: B) outside the triangle

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

If $a + \frac{1}{b} = 1 and b + \frac{1}{c} = 1 then c + \frac{1}{a} = ?$

A) 0	B) 2
C) 1	D) 3

Answer & Explanation Answer: C) 1

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

What is the value of √[(1 - cosA)/(1 + cosA)]?

A) cosecA - cotA	B) cosecA + cotA
C) secA - cotA	D) secA + cotA

Quantitative Aptitude - Arithmetic Ability Questions

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