6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

Solve the following : 80÷[48−56−(60−36÷12×4)]=?

A) 5	B) 8
C) 4	D) 2

Answer & Explanation Answer: D) 2

Explanation:

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Filed Under: Simplification

2 48623

Q:

If (3/2)X = (5/7)Y = (6/5)Z, then what is X : Y : Z?

A) 105 : 50 : 84	B) 24 : 25 : 32
C) 15 : 21 : 25	D) 20 : 42 : 25

Answer & Explanation Answer: D) 20 : 42 : 25

Explanation:

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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

16 48533

Q:

If ${(\frac{5}{7})}^{4 x} . {(\frac{7}{5})}^{3 x - 1} = {(\frac{7}{5})}^{6}$ , then find the value of x which satisfies the equation.

A) -1	B) -7
C) 1	D) 7

Answer & Explanation Answer: B) -7

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Exam Prep: Bank Exams

0 48531

Q:

Two trains A and B start simultaneously in the opposite direction from two points P and Q and arrive at their destinations 16 and 9 hours respectively after their meeting each other. At what speed does the second train B travel if the first train travels at 120 km/h

A) 90 km/h	B) 160 km/h
C) 67.5 km/h	D) None of these

Answer & Explanation Answer: B) 160 km/h

Explanation:

$\frac{s_{1}}{s_{2}} = \sqrt{\frac{t_{2}}{t_{1}}}$

$\Rightarrow \frac{120}{s_{2}} = \sqrt{\frac{9}{16}} = \frac{3}{4}$

$\Rightarrow$ $s_{2} = 160 k m / h$

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Filed Under: Time and Distance

162 48372

Q:

Which of the following value of 'x' satisfies the equation

$4^{x - 1} . 9^{2 x - 6} = 5184$

A) 2	B) 3
C) 4	D) 6

Answer & Explanation Answer: C) 4

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Filed Under: Simplification
Exam Prep: Bank Exams

0 48327

Q:

The cost of Type 1 rice is Rs. 15 per kg and Type 2 rice is Rs.20 per kg. If both Type 1 and Type 2 are mixed in the ratio of 2 : 3, then the price per kg of the mixed variety of rice is

A) Rs. 19.50	B) Rs. 19
C) Rs. 18	D) Rs. 18.50

Answer & Explanation Answer: C) Rs. 18

Explanation:

Let the price of the mixed variety be Rs. x per kg. By the rule of alligation, we have :

Cost of 1 kg of type 1 rice Cost of 1 kg of type 2 rice

$∴$ (20-x)/(x-15) = 2/3

$\Rightarrow$ 60 - 3x = 2x - 30

$\Rightarrow$ x = 18.

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Filed Under: Alligation or Mixture

107 48311

Q:

What is the value of (sin30° + 1/3) ?

A) (2√2+√3)/2	B) (√6+1)/√3
C) 7/3	D) 5/6

Answer & Explanation Answer: D) 5/6

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

0 48262

Q:

Solve : 2x + 4 = x - 3

A) 7	B) -7
C) -1	D) 1

Quantitative Aptitude - Arithmetic Ability Questions

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