6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

If 0.75: x :: 5:8, then x is equal to:

A) 1.12	B) 1.16
C) 1.20	D) 1.30

Answer & Explanation Answer: C) 1.20

Explanation:

(x * 5) = (0.75 *8)

X=6/5 = 1.20

Report Error

View Answer Report Error Discuss

Filed Under: Ratios and Proportions

268 78834

Q:

12 men can complete a work in 8 days. 16 women can complete the same work in 12 days. 8 men and 8 women started working and worked for 6 days. How many more men are to be added to complete the remaining work in 1 day?

A) 8	B) 12
C) 16	D) 24

Answer & Explanation Answer: B) 12

Explanation:

1 man's 1 day work =1/96 ; 1 woman's 1 day work = 1/192

Work done in 6 days= $6 (\frac{8}{96} + \frac{8}{192}) = 6 \times \frac{1}{8} = \frac{3}{4}$

Remaining work = 1/4

(8 men +8 women)'s 1 day work = $1 (\frac{8}{96} + \frac{8}{192})$ =1/8

Remaining work =1/4 - 1/8 = 1/8

1/96 work is done in 1 day by 1 man

Therefore, 1/8 work will be done in 1 day by 96 x (1/8) =12 men

Report Error

View Answer Report Error Discuss

Filed Under: Time and Work

327 78544

Q:

∆UVW is right angled at V. If cosU = 8/17, then what is the value of sinW ?

A) 15/17	B) 17/8
C) 8/17	D) 17/15

Answer & Explanation Answer: C) 8/17

Explanation:

Report Error

View Answer Report Error Discuss

Filed Under: Simplification
Exam Prep: Bank Exams

1 78467

Q:

Find the value of

$n + \frac{3 n}{2} + \frac{9 n}{4} + . . . . . . \infty$

A) 0	B) 1
C) 2	D) infinity

Answer & Explanation Answer: D) infinity

Explanation:

Report Error

View Answer Report Error Discuss

Filed Under: Simplification

4 78429

Q:

Find the unit place digit in the given expression.

${(153)}^{144} - {(115)}^{123} - {(111)}^{510} + {(216)}^{25}$

A) 1	B) 5
C) 6	D) 3

Answer & Explanation Answer: A) 1

Explanation:

Report Error

View Answer Report Error Discuss

Filed Under: Simplification
Exam Prep: Bank Exams

1 78377

Q:

$\frac{1}{33} of \frac{1}{66} of \frac{1}{33} of \frac{1}{66}$ of 10000 of a number will be what percentage of that number?

A) 2.32	B) 1.32
C) 0.232	D) 0.0232

Answer & Explanation Answer: A) 2.32

Explanation:

Report Error

View Answer Report Error Discuss

Filed Under: Percentage
Exam Prep: Bank Exams

26 78222

Q:

1 4 27 Sequence ...

Find the next two numbers in the above sequnce?

A) 256 & 3125	B) 3125, 46656
C) 46656, 859587	D) None

Answer & Explanation Answer: A) 256 & 3125

Explanation:

The above given sequence follows a pattern that,

$1 2^{2} = 4 3^{3} = 27 4^{4} = 256 5^{5} = 3125 6^{6} = 46656 and so on . . .$

Therefore, the next two numbers in the given sequence is 256 & 3125.

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

6 78198

Q:

At what rate percent per annum will a sum of money double in 8 years.

A) 12.5%	B) 13.5%
C) 11.5%	D) 14.5%

Answer & Explanation Answer: A) 12.5%

Explanation:

Let principal = P, Then, S.I.= P and Time = 8 years

We know that S.I. = PTR/100

Rate = [(100 x P)/ (P x 8)]% = 12.5% per annum.

Report Error

View Answer Report Error Discuss

Filed Under: Simple Interest
Exam Prep: GRE , CAT , Bank Exams
Job Role: Bank PO , Bank Clerk

469 78174

Quantitative Aptitude - Arithmetic Ability Questions

Quick Links