6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

What is the simplified value of $\sqrt{18} - \frac{1}{\sqrt{2}}$ ?

A) 5/√2	B) 5√2
C) 2√5	D) 2/√5

Answer & Explanation Answer: A) 5/√2

Explanation:

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Q:

If 2x- 3(4-2x) < 4x - 5 < 4x + 2x/3, then x can take which of the following values?

A) 2	B) 8
C) 0	D) -8

Answer & Explanation Answer: C) 0

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Q:

If 16% of an electricity bill is deducted, Rs 1806 is still to be paid. How much was the bill?

A) Rs 1557	B) Rs 2186
C) Rs 1593	D) Rs 2150

Answer & Explanation Answer: D) Rs 2150

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Q:

Given that the polynomial $(x^{2} + ax + b)$ leaves that same remainder when by (x –1) or (x + 1) What are the values of a and b respectively?

A) 4 and 0	B) 0 and 3
C) 3 and 0	D) 0 and any interger

Answer & Explanation Answer: D) 0 and any interger

Explanation:

Since x^2+ ax + b when divided by x-1 or x+1 leaves the same remainder

So on putting x=1 and x=-1 we get the same value

1+a+b = 1-a+b

2a=0

a=0

here b can take any value as it will always get cancelled out

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Q:

Find the area (in cm²) of a semi-circle of radius 35 cm.

A) 3850	B) 960
C) 1920	D) 1925

Answer & Explanation Answer: D) 1925

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Q:

ax + 3y = 6 has slope -2/3. What is the value of a?

A) -2	B) 2
C) 3	D) -3

Answer & Explanation Answer: B) 2

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Q:

In ΔXYZ measure of angle Y is 90 deg. If cot X = 5/12, and XY = 2.5 cm, then what is the length (in cm) of side XZ?

A) 6	B) 4
C) 5.6	D) 6.5

Answer & Explanation Answer: D) 6.5

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Exam Prep: Bank Exams , CAT

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Q:

Atul can do a piece of work in 18 days, Aaravya is 50% more efficient than Atul. How much more time does Atul take than Aaravya to do the same piece of work?

A) 12	B) 6
C) 18	D) 10

Quantitative Aptitude - Arithmetic Ability Questions

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