6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

Find the ratio of the areas of the incircle and circumcircle of a square ?

A) 1 : 4	B) 4 : 1
C) 2 : 1	D) 1 : 2

Answer & Explanation Answer: D) 1 : 2

Explanation:

Let the side of the square be x. Then, its diagonal = $\sqrt{2} x$ .

Radius of incircle = x/2 and radius of circumcircle = $\frac{\sqrt{2} x}{2}$ . k11482389216.png image

Therefore, required ratio = $(\frac{{πx}^{2}}{4} : \frac{{πx}^{2}}{2})$ = $\frac{1}{4} : \frac{1}{2} = 1 : 2$

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Filed Under: Area
Exam Prep: CAT
Job Role: Bank Clerk

22 13483

Q:

The total surface area of a cube is 253.5 sq.cm. Find its side (in cm).

A) 7.5	B) 5.5
C) 6.5	D) 8.5

Answer & Explanation Answer: C) 6.5

Explanation:

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Filed Under: Volume and Surface Area
Exam Prep: Bank Exams

0 13481

Q:

In every 60 minutes, the minute hand gains -------- minutes on the
hour hand

A) 53	B) 54
C) 55	D) 56

Answer & Explanation Answer: C) 55

Explanation:

point to be remembered

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

21 13480

Q:

In a simultaneous throw of two dice, what is the probability of getting a doublet ?

A) 1/6	B) 1/3
C) 4/7	D) 4/5

Answer & Explanation Answer: A) 1/6

Explanation:

In a simultaneous throw of two dice, n(S) = 6 x 6 = 36

Let E = event of getting a doublet = { (1,1), (2,2), (3,3), (4,4), (5,5), (6,6)}

$P (E) = \frac{n (E)}{n (S)} = \frac{6}{36} = \frac{1}{6}$

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Filed Under: Probability

10 13480

Q:

Read the data given and answer the following questions

In a class of 60 students:

42 like Maths,

32 like English,

12 like neither Maths nor English

How many students like exactly one subject?

A) 16	B) 12
C) 6	D) 22

Answer & Explanation Answer: D) 22

Explanation:

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Filed Under: Percentage
Exam Prep: Bank Exams

2 13475

Q:

Find the number of zeroes in 129!

A) 31	B) 33
C) 35	D) 37

Answer & Explanation Answer: A) 31

Explanation:

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Filed Under: Problems on Numbers
Exam Prep: Bank Exams

0 13474

Q:

A merchant buys two items for Rs. 7500. One item he sells at a profit of 16% and the other item at 14% loss. In the deal, the merchant makes neither any profit nor any loss. What is the difference between the selling price of both the items?

A) Rs. 620	B) Rs. 654
C) Rs. 725	D) Rs. 747

Answer & Explanation Answer: A) Rs. 620

Explanation:

Let the C.P of one item is Rs. P
and that of other is Rs. (7500 - P)

According to the data given
C.P = S.P
=> Px(116/100) + (7500-P)x(86/100) = 7500
=> 30P = 105000
=> P = 3500

Required difference between selling prices
= Rs. [(3500/100) x 116] - [(4000/100) x 86]
= 4060-3440
= Rs. 620

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Filed Under: Profit and Loss
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO , IT Trainer

14 13465

Q:

In the following question, select the odd letter/letters from the given alternatives.

A) GEC	B) NLJ
C) OMK	D) YWN

Quantitative Aptitude - Arithmetic Ability Questions

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