6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

If a : b is 32 : 35 and b : c is 21 : 32, then a : c is?

A) 5 : 3	B) 3 : 5
C) 1 : 1	D) 5 : 7

Answer & Explanation Answer: B) 3 : 5

Explanation:

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Filed Under: Ratios and Proportions
Exam Prep: AIEEE , Bank Exams , CAT

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Q:

What is the unit digit of $1^{5} + 2^{5} + 3^{5} + . . . + 20^{5}$ ?

A) 0	B) 5
C) 2	D) 4

Answer & Explanation Answer: A) 0

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

An engineering student has to secure 25% marks to pass. He gets 47 and fails by 43 marks. What are the maximum marks of the examination?

A) 385 marks	B) 410 marks
C) 360 marks	D) 435 marks

Answer & Explanation Answer: C) 360 marks

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Filed Under: Percentage
Exam Prep: Bank Exams

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Q:

In the question given below, two equations are provided. Solve the equations and establish the relationship between x and y

$I . 2 x^{2} - 13 x - 189 = 0 II . 2 y^{2} - 3 y - 189 = 0$

A) x>y	B) x≥y
C) x<y	D) x≤y

Answer & Explanation Answer:

Explanation:

I. 2x2 - 13x - 189 = 0 2x2 - 27x + 14x - 189 = 0 x(2x - 27) + 7(2x - 27) = 0 x = -7, 27/2

II. 2y2 - 3y - 189 = 0 2y2 - 21y + 18y - 189 = 0 y(2y - 21) + 9(2y - 21) = 0 y = -9, 21/2

When x, as well as y, have both positive and negative values then no relationship can be established between them because if we consider x to be positive then the negative value of y will be lesser than x. If we consider x to be negative then positive value of y will be greater than x.

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Filed Under: Simplification

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Q:

If Cosec θ = 17/8, then Cot θ = ?

A) 17/8	B) 15/8
C) 8/15	D) 17/15

Answer & Explanation Answer: B) 15/8

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

A man travels some distance at a speed of 12 km/hr and returns at a speed of 9 km/hr. If the total time taken by him is 2 hrs 20 min, the distance is

A) 35 Km	B) 21 Km
C) 9 Km	D) 12 Km

Answer & Explanation Answer: D) 12 Km

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Filed Under: Time and Distance
Exam Prep: Bank Exams

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Q:

A train starts from a place A at 8:00 a.m. and arrives at another place B at 1:30 p.m. on the same day. If the speed of the train is 30 km/hr, then what will be the distance (in km) covered by the train?

A) 165	B) 175
C) 150	D) 135

Answer & Explanation Answer: A) 165

Explanation:

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Filed Under: Problems on Trains
Exam Prep: Bank Exams

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Q:

In the fig. $∆ ABC$ is inscribed in a circle with centre O. If ∠ABC = 30° then ∠ACB is equal to

A) 30°	B) 60°
C) 50°	D) 90°

Quantitative Aptitude - Arithmetic Ability Questions

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