6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

$4 + (\frac{1}{6}) [\{- 10 x (25 - 13 - 3)\} \div (- 5)] = ?$

A) 8	B) 9
C) 6	D) 7

Answer & Explanation Answer: D) 7

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

0 38871

Q:

The age of a man is 4 times of his son. Five years ago, the man was nine times old as his son was at that time. The present age of man is?

Answer

Let the son's age be x years and the father's age be 4x years

$\Rightarrow (4x-5)=9(x-5)$

5x = 40

x = 8

$\inline \therefore$ present age of the father = $\inline 4x$ = $\inline 4\times 8$ = 32 years

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Subject: Problems on Ages

204 38857

Q:

Tarun got 30% concession on the labelled price of an article and sold it for Rs. 8750 with 25% profit on the price he bought. What was the labelled price ?

A) 10000	B) 12000
C) 13000	D) 14000

Answer & Explanation Answer: A) 10000

Explanation:

Cost Price = $R s . [\frac{100}{125} \times 8750]$ = Rs. 7000. Let the labelled price be Rs. x.

Then, $\frac{70}{100} * x = 7000$ $\Rightarrow x = R s . (\frac{7000 * 100}{70})$

= Rs.10000

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Filed Under: Profit and Loss

200 38839

Q:

A and B start a business jointly. A invests Rs. 16,000 for 8 months and B remains in the business for 4 months, Out of total profit, B claims - of the profit. How much money was contributed by B ?

A) 12000	B) 12800
C) 13000	D) 14500

Answer & Explanation Answer: B) 12800

Explanation:

Let the total profit be Rs. x. Then, B = 2x/7 and A = (x - 2x /7) = 5x / 7.

So, A : B = 5x/7 : 2x/7 = 5 : 2.

Let B s capital be Rs. y. Then, (16000 * 8) / ( y * 4) = 5/2 <=> (16000 * 8 * 2) / (5 * 4) = 12800..

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Filed Under: Partnership

35 38715

Q:

Find the wrong number in the given number series?

5, 8, 40, 90, 664

A) 8	B) 40
C) 90	D) 664

Answer & Explanation Answer: B) 40

Explanation:

The given number series is 5, 8, 40, 90, 664

5

5 - 1 x 2 = 8

8 - 3 x 4 = 20 (NOT 40)

20 - 5 x 6 = 90

90 - 7 x 8 = 664

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Filed Under: Odd Man Out
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO , Database Administration , IT Trainer , Network Engineer

6 38696

Q:

The profit earned by selling an article for Rs 900 is double the loss incurred when the same article is sold for Rs.490. At what price should the article be sold to make 25% profit?

A) 715	B) 469
C) 400	D) 750

Answer & Explanation Answer: D) 750

Explanation:

Let C.P be Rs. x

900 - x = 2(x - 450) => x = Rs.600

C.P = 600 gain required is 25%

S.P = [(100+25) x 600] / 100 = Rs.750

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Filed Under: True Discount

62 38696

Q:

One side of a rectangular field is 15m and one of its diagonal is 17m. Find the area of field?

A) 110	B) 120
C) 130	D) 140

Answer & Explanation Answer: B) 120

Explanation:

Other side = [(17 x 17) - (15 x 15)] = (289 - 225) = 8m
Area = 15 x 8 =120 sq. m

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Filed Under: Area
Exam Prep: Bank Exams
Job Role: Bank PO

73 38695

Q:

What is the value of $\sqrt{1054 + \sqrt{196} + \sqrt{169} + \sqrt{64}}$ ?

A) 33	B) 37
C) 29	D) 31

Quantitative Aptitude - Arithmetic Ability Questions

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