6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

Find the odd word/letters/number from the given alternatives.

A) DGI	B) JMO
C) PRT	D) TWY

Answer & Explanation Answer: C) PRT

Explanation:

Report Error

View Answer Report Error Discuss

Filed Under: Odd Man Out
Exam Prep: Bank Exams

0 3028

Q:

What is the interest rate per annum, if a sum of money invested at compound interest amount to Rs. 2400 in 3 years and in 4 years to Rs. 2,520?

A) 3.5%	B) 4%
C) 5%	D) 6.5%

Answer & Explanation Answer: C) 5%

Explanation:

Let 'R%' be the rate of interest

From the given data,

$\frac{2520}{2400} = \frac{{(1 + \frac{R}{100})}^{4}}{{(1 + \frac{R}{100})}^{3}} \Rightarrow (1 + \frac{R}{100}) = \frac{63}{60} \Rightarrow R = 5$

Hence, the rate of interest R = 5% per annum.

Report Error

View Answer Report Error Discuss

Filed Under: Compound Interest
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO , Database Administration , IT Trainer

19 3027

Q:

Write 0.125 as a percent %?

A) 12%	B) 12.5%
C) 13%	D) 13.5%

Answer & Explanation Answer: B) 12.5%

Explanation:

Here to convert 0.125 into %

First convert to fractio

Multiply and divide by 1000

=> $0.125 x \frac{1000}{1000} = \frac{125}{1000} = \frac{1}{8}$

=> Now, $in percentage \frac{1}{8} x 100 = 12.5 %$

Report Error

View Answer Report Error Discuss

Filed Under: Percentage
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO

7 3026

Q:

Simplify : 5x - 2x(x-1)

A) 3x-2	B) 3x+2
C) 7x+2x2	D) 7x-2x2

Answer & Explanation Answer: D) 7x-2x2

Explanation:

Report Error

View Answer Report Error Discuss

Filed Under: Simplification
Exam Prep: Bank Exams

0 3025

Q:

Two trains running in opposite directions cross a pole placed on the platform in 47 seconds and 31 seconds respectively. If they cross each other in 33 seconds, what is the ratio of their speeds?

A) 1:7	B) 7:1
C) 2:3	D) 3:2

Answer & Explanation Answer: A) 1:7

Explanation:

Let the speed of the trains be x and y respectively
length of train1 = 47x
length of train2 = 31y
Relative speed= x + y
Time taken to cross each other = 33 s
=> $\frac{47 x + 31 y}{x + y}$ = 33
=> (47x + 31 y) = 33(x + y)
=> 14x = 2y
=> x/y = 2/14 = 1/7

= 1:7

Report Error

View Answer Report Error Discuss

Filed Under: Time and Distance
Exam Prep: GRE , GATE , CAT , Bank Exams , AIEEE
Job Role: Bank PO , Bank Clerk , Analyst

4 3021

Q:

In how many ways word of 'GLACIOUS' can be arranged such that 'C' always comes at end?

A) 3360	B) 5040
C) 720	D) 1080

Answer & Explanation Answer: B) 5040

Explanation:

Given word is GLACIOUS has 8 letters.

=> C is fixed in one of the 8 places

Then, the remaining 7 letters can be arranged in 7! ways = 5040.

Report Error

View Answer Report Error Discuss

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

2 3020

Q:

Find the volume (in cm3) of a hemisphere of diameter 7 cm.

A) 77	B) 63
C) 89.83	D) 54.13

Answer & Explanation Answer: C) 89.83

Explanation:

Report Error

View Answer Report Error Discuss

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

0 3011

Q:

A man invested an amount at the rate of 10% p.a. on compound interest and after two years he again invested half of the initial amount. If man got Rs. 457.2 Rs. as interest after three years, find the amount received by man after three years, if he invested same amount on simple interest at rate of 15% p.a.?

A) 1740 Rs.	B) 1760 Rs.
C) 1720 Rs.	D) 1780 Rs.

Quantitative Aptitude - Arithmetic Ability Questions

Quick Links