6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

Albert invested an amount of Rs. 8000 in a fixed deposit scheme for 2 years at compound interest rate 5 p.c.p.a. How much amount will Albert get on maturity of the fixed deposit

A) Rs.8820	B) Rs.8620
C) Rs.8520	D) Rs.8320

Answer & Explanation Answer: A) Rs.8820

Explanation:

Amount = $R s . [8000 * {(1 + \frac{5}{100})}^{2}]$ =Rs.8820

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Filed Under: Compound Interest
Exam Prep: Bank Exams
Job Role: Bank PO

12 15812

Q:

The cost of the paint is rs.36.50 per kg. if 1kg of paint covers 16sq.ft, how much will it cost to paint outside of a cube having 8 feet each side

A) Rs.962	B) Rs.672
C) Rs.546	D) Rs.876

Answer & Explanation Answer: D) Rs.876

Explanation:

surface area of a cube= 6 x (8 x 8) = 384 sq.ft

quantity of paint required=(384/16)=24kg

cost of painting= 36.5 x 24 = Rs.876

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Filed Under: Volume and Surface Area
Exam Prep: Bank Exams
Job Role: Bank PO

13 15801

Q:

Find the surface area of a10cm x 4cm x 3cm brick

A) 84	B) 124
C) 164	D) 180

Answer & Explanation Answer: C) 164

Explanation:

surface area = [2(10*4 + 4*3 + 10*3)]sq.cm = 164 sq.cm

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Filed Under: Volume and Surface Area
Exam Prep: Bank Exams
Job Role: Bank PO

22 15796

Q:

The ratio of boys and girls in a school is 9:5.If the total number of students in the school is 1050.Then number of boys is

Answer

Let the ratio be 'R'

Total number of students = 1050

Then,

9R + 5R = 1050

14R = 1050

=> R = 75

Hence, the number of boys = 9R = 9 x 75 = 675

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Subject: Ratios and Proportions Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Bank Clerk , Bank PO

69 15795

Q:

1.12.91 is the first Sunday. Which is the fourth Tuesday of December 91 ?

A) 17.12.91	B) 24.12.91
C) 27.12.91	D) 31.12.91

Answer & Explanation Answer: B) 24.12.91

Explanation:

1.12.91 is the first Sunday of December 91.
So, 3.12.91 is the first Tuesday of the month.
Clearly, 10.12.91, 17.12.91, 24.12.91 and 31.12.91 are also Tuesdays.
So, 24.12.91 is the fourth Tuesday.

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

31 15761

Q:

The area of a square field is 69696sq.cm..its diagonal will be equal to

A) 373	B) 573
C) 473	D) 673

Answer & Explanation Answer: A) 373

Explanation:

$d = \sqrt{2 * s} = > d = \sqrt{2 * 69696}$

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Filed Under: Area
Exam Prep: Bank Exams
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9 15756

Q:

The curved surface area of a cylindrical pillar is 264 sq.m and its volume is 924 cub.m. Find the ratio of its diameter to its height

A) 3 : 7	B) 7 : 3
C) 6 : 7	D) 7 : 6

Answer & Explanation Answer: B) 7 : 3

Explanation:

$\frac{{πr}^{2 h}}{2 {πr}^{2 h}} = \frac{924}{264}$

=> r = (24/364) x 2 = 7m

$2 πrh = 264 \Rightarrow h = (264 \times \frac{7}{22} \times \frac{1}{2} \times \frac{1}{7}) = 6 m$

Required Rato =2r/h =14/6 = 7:3

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Filed Under: Volume and Surface Area

21 15739

Q:

In an examination a candidate got 30% marks and failed by 30 marks. If the passing marks are 60% of the total marks, then the maximum marks will be:

A) 450	B) 600
C) 300	D) 100

Answer & Explanation Answer: D) 100

Explanation:

Passing marks are 0.6x

so 0.3x + 30 = 0.6x => x = 100

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

21 15725

Quantitative Aptitude - Arithmetic Ability Questions

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