6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

Which of the following quadratic equations has real roots?

A) 3x2 - 5x + 2 = 0	B) 3x2 - 4x + 2 = 0
C) 4x2 - 3x + 2 = 0	D) 5x2 - 2x + 2 = 0

Answer & Explanation Answer: A) 3x2 - 5x + 2 = 0

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

In the following question, select the odd number group from the given alternatives.

A) (4, 16, 48)	B) (6, 36, 90)
C) (8, 64, 160)	D) (12, 144, 360)

Answer & Explanation Answer: A) (4, 16, 48)

Explanation:

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Filed Under: Odd Man Out
Exam Prep: Bank Exams

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Q:

The percentage change of a number when it is first decreased by 10% and then increased by 10% is

A) 0.1 % increase	B) 1 % decrease
C) 0.1 % decrease	D) No changes

Answer & Explanation Answer: B) 1 % decrease

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Filed Under: Quantitative Aptitude - Arithmetic Ability

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Q:

If sec -7π/4 = x, then the value of x is

A) √2	B) -√2
C) -1/√3	D) -1

Answer & Explanation Answer: A) √2

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Filed Under: Quantitative Aptitude - Arithmetic Ability
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Q:

19 personswentto a hotel for a combineddinner party. 13 of them spent Rs 79 each on their dinner and the rest spent Rs 4 more than the average expenditure of all the 19. What was the total money spent by them?

A) 1628.4	B) 1534
C) 1492	D) None of these

Answer & Explanation Answer: D) None of these

Explanation:

Let the average expenditure of 19 people be x

⇒19x = 13 X 79 + 6 X (x+4)⇒19x = 13 X 79 + 6x +24

⇒x = 80.84

So, total money spent by them = 1536.07

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Filed Under: Average
Exam Prep: Bank Exams

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Q:

The value of $(\frac{2 + \sqrt{3}}{2 - \sqrt{3}} - {\sqrt[4]{3}}^{2}) i s$

A) 36	B) 336
C) 49	D) 49+3

Answer & Explanation Answer: C) 49

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Q:

If cost price of 5 cars is equal to selling price of 4 cars. Find the percentage of profit or loss?

A) 10% Profit	B) 10% Loss
C) 25% Profit	D) 25% Loss

Answer & Explanation Answer: C) 25% Profit

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Filed Under: Profit and Loss
Exam Prep: Bank Exams

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Q:

At an average of 80 km/hr Shatabdi Express reaches Ranchi from Kolkata in 7 hrs. Then the distance between Kolkata and Ranchi is

A) 560 Km	B) 506 Km
C) 560 m	D) 650 m

Quantitative Aptitude - Arithmetic Ability Questions

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