6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

Find the odd man out of the series?

128, 32, 14, 2.66, 0.88

A) 32	B) 14
C) 2.66	D) 0.88

Answer & Explanation Answer: B) 14

Explanation:

Here the given series is 128, 32, 14, 2.66, 0.88

128 / 4 = 32

32 / 3 = 10.666

10.666 / 4 = 2.666

2.666 / 3 = 0.888

Hence, the odd man in the given number series is 14.

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7 72015

Q:

Calculate the value of x, if $\sqrt{1 - (\frac{x}{529})} = (\frac{16}{23})$

A) 283	B) 276
C) 273	D) 374

Answer & Explanation Answer: C) 273

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

3 71996

Q:

In the following question, select the odd word from the given alternatives.

A) Rhombus	B) Cylinder
C) Cone	D) Sphere

Answer & Explanation Answer: A) Rhombus

Explanation:

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0 71685

Q:

What is the value of (2 - tan60°) ?

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

Answer & Explanation Answer: D) 2-√3

Explanation:

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1 71556

Q:

If the diameter of a circle is 28 cm, then what will be its circumference (in cm)?

A) 88	B) 176
C) 35	D) 70

Answer & Explanation Answer: A) 88

Explanation:

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Filed Under: Area
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0 71444

Q:

If $19 x^{2} = 100^{2} - 90^{2}$ , then find the value of x.

A) 10	B) 9
C) 11	D) 12

Answer & Explanation Answer: A) 10

Explanation:

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1 71438

Q:

A mixture contains alcohol and water in the ratio 4 : 3. If 5 liters of water is added to the mixture, the ratio becomes 4: 5. Find the quantity of alcohol in the given mixture.

A) 10	B) 12
C) 15	D) 18

Answer & Explanation Answer: A) 10

Explanation:

Let the quantity of alcohol and water be 4x litres and 3x litres respectively

4x/(3x+5) = 4/5

20x = 4(3x+5)

8x = 20

x = 2.5

Quantity of alcohol = (4 x 2.5) litres = 10 litres.

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Filed Under: Ratios and Proportions

348 71293

Q:

A man took loan from a bank at the rate of 12% p.a. simple interest. After 3 years he had to pay Rs. 5400 interest only for the period. The principal amount borrowed by him was:

A) Rs.2000	B) Rs.10000
C) Rs.15000	D) Rs.20000

Answer & Explanation Answer: C) Rs.15000

Explanation:

Principal = $R s (\frac{100 \times 5400}{12 \times 3}) = R s . 15000$

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Filed Under: Simple Interest
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174 71255

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