6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

Pipe A is an inlet pipe that can fill an empty cistern in 69 hours. Pipe B can drain the filled cistern in 46hours. When the cistern was filled the two pipes are opened one at a time for an hour each, starting withPipe B. how long will it take for the cistern to be empty?

A) 11 days 10 hours	B) 11 days 7 hours
C) 11 days 12 hours	D) 1 days 13 hours

Answer & Explanation Answer: B) 11 days 7 hours

Explanation:

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Filed Under: Pipes and Cistern
Exam Prep: Bank Exams

22 3284

Q:

Solve the triangle b=36 a=38 c=18 for perimeter of the triangle?

A) 74 units	B) 92 units
C) 56 units	D) 54 units

Answer & Explanation Answer: B) 92 units

Explanation:

We know, the perimeter of a triangle = sum of all the sides of a triangle = a + b + c

Here given that sides a = 38, b= 36 and c = 18

solve_the_triangle_b36_a38_c181537423406.jpg image

Now, perimeter of the triangle = a + b + c = 38 + 36 + 18 = 92 units.

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Filed Under: Volume and Surface Area
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO

5 3284

Q:

The ratio of the members of blue to red balls in abag is constant. When there were 44 red balls, the number of blue balls was 36. If the number of blue balls is 54, how many red balls will be in the bag?

A) 68	B) 32
C) 64	D) 66

Answer & Explanation Answer: D) 66

Explanation:

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Filed Under: Permutations and Combinations
Exam Prep: Bank Exams

26 3284

Q:

An amount of 5,000 is invested at a fixed rate of 8 per cent per annum. What amount will be the value of the investment in five years time, if the interest is compounded annually

A) 7346.64	B) 8346
C) 3456	D) 4567

Answer & Explanation Answer: A) 7346.64

Explanation:

The only part of this type of calculation that needs particular
care is that concerning the interest rate. The formula assumes that
r is a proportion, and so, in this case:
r = 0.08
In addition, we have P = 5,000 and n = 5, so:
V = P(1 + r)5 = 5,000 x (1 + 0.08)5 = 5,000 x 1.469328 = 7,346.64
Thus the value of the investment will be 7,346.64

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

0 3281

Q:

$\frac{1}{8}$ as a decimal?

A) 0.375	B) 0.247
C) 0.214	D) 0.125

Answer & Explanation Answer: D) 0.125

Explanation:

Here $\frac{1}{8}$ in decimal means 8th part in 1.

We know that $\frac{1}{10}$ = 0.1

Then, $\frac{1}{8} = ?$

=> $? = \frac{\frac{1}{8} x 0.1}{\frac{1}{10}} = \frac{0.1 x 10}{8} = \frac{0.5}{4} \frac{1}{8} = 0.125$

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Filed Under: Decimal Fractions
Exam Prep: AIEEE , Bank Exams , CAT , GATE , GRE
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4 3275

Q:

A does 75% of a work in 25 days. He then calls in B and they together finish the remaining work in 5 days. How long B alone would take to do the whole work?

A) 50 days	B) 80 days
C) 24 days	D) 37.5 days

Answer & Explanation Answer: A) 50 days

Explanation:

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Filed Under: Time and Work
Exam Prep: Bank Exams

5 3273

Q:

What will be the ratio of simple interest earned by certain amount at the same rate of interestfor 4 years and 6 years ?

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

Answer & Explanation Answer: C) 2:3

Explanation:

Let p be the principle amount

And R% be the rate of interest

Then, required ratio = $(\frac{\frac{P \times 4 \times R}{100}}{\frac{P \times 6 \times R}{100}})$

$\Rightarrow \frac{4 P R}{6 P R}$ = 2:3

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

2 3270

Q:

In an election between two candidates, the winning candidate has got 70% of the votes polled and has won by 15400 votes. What is the number of votes polled for loosing candidate?

A) 38500	B) 11550
C) 26950	D) 13550

Quantitative Aptitude - Arithmetic Ability Questions

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