6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

Rs. 782 is divided into 3 parts in the ratio $\frac{1}{2} : \frac{2}{3} : \frac{3}{4}$ , the first part is

A) Rs. 182	B) Rs. 204
C) Rs. 190	D) Rs. 196

Answer & Explanation Answer: B) Rs. 204

Explanation:

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Filed Under: Ratios and Proportions
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3 1813

Q:

Rs 18200 is divided among X, Y and Z in the ratio of 1/3 : 1/4 : 1/2. What is the share (in Rs) of X ?

A) 7000	B) 4400
C) 4200	D) 5600

Answer & Explanation Answer: D) 5600

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Filed Under: Ratios and Proportions
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2 1813

Q:

The average marks obtained in a class of 50 students is 70%. The average of first 25 is 60% and that of 24 is 80%. What is the marks obtained by the last student?

A) 90%	B) 60%
C) 80%	D) 70%

Answer & Explanation Answer: C) 80%

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Filed Under: Percentage
Exam Prep: Bank Exams

1 1812

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

0 1811

Q:

The value of ${cosec}^{2} 60 + \sec^{2} 60 \cot^{2} 60 + \tan^{2} 30$ will be

A) 5	B) 5 1/2
C) 5 1/3	D) 5 2/3

Answer & Explanation Answer: C) 5 1/3

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Q:

What is the unit place digit in the expansion of $7^{73}$ ?

A) 1	B) 3
C) 7	D) 9

Answer & Explanation Answer: C) 7

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Filed Under: Numbers
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Q:

If $a^{3} + b^{3} = 19$ and a + b = 1, then what is the value of ab?

A) 5	B) -6
C) 7	D) -9

Answer & Explanation Answer: B) -6

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Q:

A man travelled a distance of 60 km in 7 hours. He travelled partly on foot @ 6 km/hr and partly on bicycle @ 12 km/hr. What is the distance (in kms) travelled on foot?

A) 15	B) 9
C) 48	D) 24

Quantitative Aptitude - Arithmetic Ability Questions

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