6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

If log 2 = 0.30103, Find the number of digits in 2⁵⁶ is

A) 17	B) 19
C) 23	D) 25

Answer & Explanation Answer: A) 17

Explanation:

$\log (2^{56})$ =56*0.30103 =16.85768.

Its characteristics is 16.

Hence, the number of digits in $2^{56}$ is 17.

Report Error

View Answer Report Error Discuss

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

121 58933

Q:

Calculate the value of x, if $\sqrt{1 - (\frac{x}{529})} = (\frac{16}{23})$

A) 283	B) 276
C) 273	D) 374

Answer & Explanation Answer: C) 273

Explanation:

Report Error

View Answer Report Error Discuss

Filed Under: Simplification
Exam Prep: Bank Exams

3 58918

Q:

If the radius of a circle is decreased by 50%, find the percentage decrease in its area.

A) 55%	B) 65%
C) 75%	D) 85%

Answer & Explanation Answer: C) 75%

Explanation:

Let original radius = R.

New radius = $\frac{50}{100} R$ = $\frac{50}{100} R$

Original area = $\frac{R}{2}$ and new area = ${πR}^{2}$

$\frac{3 {πR}^{2}}{4} * \frac{1}{{πR}^{2}} * 100$

Decrease in area = $π {(\frac{R}{2})}^{2} = \frac{{πR}^{2}}{4}$ = 75%

Report Error

View Answer Report Error Discuss

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

147 58892

Q:

In the following question, select the odd word pair from the given alternatives.

A) Net – Badminton	B) Gloves – Boxing
C) Players – Chess	D) Ball – Cricket

Answer & Explanation Answer: B) Gloves – Boxing

Explanation:

Report Error

View Answer Report Error Discuss

Filed Under: Odd Man Out
Exam Prep: Bank Exams

5 58878

Q:

Find the odd one out of the series ?

35, 48, 54, 63, 81, 105

A) 63	B) 48
C) 35	D) 81

Answer & Explanation Answer: C) 35

Explanation:

48, 54, 63, 81 and 105 are divisible by 3 but not 35.

Report Error

View Answer Report Error Discuss

Filed Under: Odd Man Out
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Bank Clerk , Bank PO

12 58850

Q:

One card is drawn at random from a pack of 52 cards. What is the probability that the card drawn is a face card (Jack, Queen and King only)?

A) 3/13	B) 1/13
C) 3/52	D) 9/52

Answer & Explanation Answer: A) 3/13

Explanation:

Clearly, there are 52 cards, out of which there are 12 face cards.

P (getting a face card) = 12/52=3/13.

Report Error

View Answer Report Error Discuss

Filed Under: Probability

100 58731

Q:

Find the missing number in the series

1, 6, ?, 15, 45, 66, 91

A) 24	B) 28
C) 32	D) 26

Answer & Explanation Answer: B) 28

Explanation:

Here the given series 1, 6, ?, 15, 45, 66, 91 follows a

Pattern in the series is, +5, +9, +13,...,.. +21, +25

So +4 is getting increased at every term addition.

Missing Number in the series will be 15+(9+4) = 15 + 13 = 28.

Report Error

View Answer Report Error Discuss

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

7 58680

Q:

The total age of A and B is 12 years more than the total age of B and C. C is how many years younger than A ?

A) 12	B) 13
C) 14	D) 15

Answer & Explanation Answer: A) 12

Explanation:

(A+B) - (B+C) = 12

$\Rightarrow$ A - C = 12.

$\Rightarrow$ C is younger than A by 12 years.

Report Error

View Answer Report Error Discuss

Filed Under: Problems on Ages

306 58636

Quantitative Aptitude - Arithmetic Ability Questions

Quick Links