6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

Consider the following two triangles as shown in the figure below.

Choose the correct statement for the above situation.

A) 1	B) 2
C) 3	D) 4

Answer & Explanation Answer: B) 2

Explanation:

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

1 60173

Q:

A milkman purchases the milk at Rs. x per litre and sells it at Rs. 2x per litre still he mixes 2 litres water with every 6 litres of pure milk. What is the profit percentage?

A) 116%	B) 166.66%
C) 60%	D) 100%

Answer & Explanation Answer: B) 166.66%

Explanation:

Let the cost price of 1-liter pure milk be Re.1, then

$\{\begin{cases} 6 l i t e r s (m i l k) \to C . P = R s . 6 \\ 2 l i t e r s (w a t e r) \to C . P = R s . 0 \end{cases} \to C P = R s . 6 o n l y$

8 litre mixture =>

SP => 8 x 2 = Rs. 16

Profit % = $\frac{16 - 6}{6} x 100 = \frac{1000}{6} = 166.66 %$

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Filed Under: Profit and Loss
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Bank Clerk , Bank PO

394 60071

Q:

What is the value of (sin45 - √3) ?

A) (1-√6)/√2	B) (4-√3)/2√3
C) -1/2√3	D) (2-√3)/2√3

Answer & Explanation Answer: A) (1-√6)/√2

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

0 59985

Q:

If 60% of a number is added to 60, then the result is equal to the number itself. What is the number?

A) 150	B) 120
C) 100	D) 180

Answer & Explanation Answer: A) 150

Explanation:

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Filed Under: Percentage
Exam Prep: Bank Exams

4 59872

Q:

In an election only two candidates contested 20% of the voters did not vote and 120 votes were declared as invalid. The winner got 200 votes more than his opponent thus he secured 41% votes of the total voters on the voter list. Percentage votes of the defeated candidate out of the total votes casted is:

A) 47.5%	B) 41%
C) 38%	D) 45%

Answer & Explanation Answer: D) 45%

Explanation:

Let there be x voters and k votes goes to loser then

0.8x - 120 = k + (k + 200)

k+200 = 0.41x

=> k = 1440

and (k + 200) =1640

Therefore 1440/3200 x 100 = 45%

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Filed Under: Percentage

297 59830

Q:

Select the option that can replace the question mark (?) in the following equation.

$\frac{{(0.2)}^{3} - {(0.1)}^{3}}{{(0.2 + 0.1)}^{2}}$

A) 1/18	B) 3/40
C) -7/90	D) 7/90

Answer & Explanation Answer: D) 7/90

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

0 59757

Q:

Find out the wrong number in the following series:

5, 15, 30, 80, 180, 540, 1080

A) 540	B) 180
C) 30	D) 80

Answer & Explanation Answer: D) 80

Explanation:

There should be 90 instead of 80
so we can have a series
5, 5x3, 15x2, 30x3, 90x2, 180x3, 540x2 and 1080x3 and so on...

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Filed Under: Odd Man Out
Exam Prep: Bank Exams , CAT , GATE , GRE
Job Role: Bank Clerk , Bank PO

6 59627

Q:

What will be the value of that smallest positive integer N, such that $\sqrt{294 N}$ is an integer?

A) 2	B) 4
C) 6	D) 8

Quantitative Aptitude - Arithmetic Ability Questions

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