Exams Questions and Answers

Q:

What is the value of equation $a^{3} + b^{3} + c^{3} - 3 abc if a^{2} + b^{2} + c^{2} = ab + bc + ca + 4 and a + b + c = 4$ .

A) 0	B) 1
C) 16	D) 256

Answer & Explanation Answer: C) 16

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Q:

What is the value of $\sqrt[3]{729} \times \sqrt{16} + \sqrt{676} + \sqrt{169}$

A) 75	B) 64
C) 35	D) 60

Answer & Explanation Answer: A) 75

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Q:

Who wrote the book -"The Algebra of Infinite Justice"?

A) Bankim Chandra Chatterji	B) Arundhati Roy
C) Ashwaghosha	D) Anita Desai

Answer & Explanation Answer: B) Arundhati Roy

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Q:

2sin[(C+D)/2].cos[(C-D)/2] is equal to

A) sinC - sinD	B) cosC + cosD
C) cosC - cosD	D) sinC + sinD

Answer & Explanation Answer: D) sinC + sinD

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Q:

cosA/(1 - sin A) is equal to

A) (secA - tanA)	B) (secA + tanA)
C) √[(secA + tanA)]	D) √[(secA - tanA)]

Answer & Explanation Answer: B) (secA + tanA)

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Q:

In a certain code language, if SIGN is coded as 8367 and DIRECT is coded as 134259, then SIREN will be coded as

A) 83472	B) 84327
C) 83247	D) 83427

Answer & Explanation Answer: D) 83427

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Q:

The standard deviation of the set {10, 11, 12, 9, 8} is

A) 1	B) √2
C) 2	D) 2√2

Answer & Explanation Answer: B) √2

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Q:

In the following question, four number pairs are given. The number on left side of (–) is related to the number on the right side of (–) with some Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the

A) 15 – 45	B) 11 – 33
C) 15 – 55	D) 19 – 57

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