6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

Find the number of factors of 9321 ?

A) 4	B) 5
C) 7	D) 8

Answer & Explanation Answer: D) 8

Explanation:

9321 = 3 x 13 x 239 = 31 x 13 1 x 239 1 ; add one to all the powers ie.,

(1+1) x (1+1) x (1+1)= 8 ;

we get eight factors.

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Filed Under: Numbers
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11 12086

Q:

The area of a field in the shape of a trapezium measures 1440sq m. The perpendicular distance between its parallel sides is 24cm. If the ratio of the sides is 5:3, the length of the longer parallel side is:

A) 75	B) 85
C) 95	D) 105

Answer & Explanation Answer: A) 75

Explanation:

Area of field = $\frac{1}{2} * (5 x + 3 x) * 24$ = 96x sq.m

96x = 1440 => x = $\frac{1440}{96}$ = 15

Hence, the length of longer parallel side = 5x = 75m

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

7 12084

Q:

An automobile financier claims to be lending money at S.I., but he includes the interest every six months for calculating the principal. If he is charging an interest of 8%, the effective rate of interest becomes ?

A) 10.25 %	B) 8.16 %
C) 9.63 %	D) 0.16 %

Answer & Explanation Answer: B) 8.16 %

Explanation:

Let the sum be Rs. 100. Then,
S.I. for first 6 months = (100 x 8 x 1) / (100 x 2) = Rs. 4
S.I. for last 6 months = (104 x 8 x 1) / (100 x 2) = Rs. 4.16
So, amount at the end of 1 year = (100 + 4 + 4.16) = Rs. 108.16
Effective rate = (108.16 - 100) = 8.16%.

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Filed Under: Simple Interest
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4 12084

Q:

When a women sells 20 articles for Rs. 160, there is 40% loss. How many articles should she sell for Rs. 240 in order to earn 20% profit ?

A) 16	B) 15
C) 17	D) 14

Answer & Explanation Answer: B) 15

Explanation:

Given when she sells at Rs. 160 for 20 articles, she get 40% loss.

Then, to get 20% profit selling at Rs. 240 for let 'P' articles

=> $\frac{\frac{160}{20}}{60} = \frac{\frac{240}{p}}{120}$

=> 120 x 160 x P = 20 x 70 x 240

=> P = 15 articles.

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Filed Under: Profit and Loss
Exam Prep: GATE , CAT , Bank Exams , AIEEE
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26 12082

Q:

If a number 657423547X46 is divisible by 11, then find the value of X.

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

Answer & Explanation Answer: B) 9

Explanation:

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Filed Under: Problems on Numbers
Exam Prep: Bank Exams

1 12036

Q:

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

A) PNLJ	B) USQO
C) MKIG	D) QNKH

Answer & Explanation Answer: D) QNKH

Explanation:

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Filed Under: Odd Man Out
Exam Prep: Bank Exams

2 12023

Q:

5% people of a village in India died by dengue, 15% of the remainder left the village on account of fear. If now the population is reduced to 3553, how much was it in the beginning ?

A) 4400	B) 3100
C) 2800	D) 5600

Answer & Explanation Answer: A) 4400

Explanation:

Let 'P' be the original population at the beginning

P x (95/100) x (85/100) = 3553

P = 4400.

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Filed Under: Percentage
Exam Prep: AIEEE , Bank Exams , CAT , GATE
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9 12022

Q:

Calculate the value of angle FED from the figure shown below.

A) 30 deg	B) 40 deg
C) 60 deg	D) 80 deg

Quantitative Aptitude - Arithmetic Ability Questions

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