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If x +y = √3 and x - y = √2, then the value of 8xy $(x^{2} + y^{2})$ is

A) 6	B) √6
C) 5	D) √5

A) 6

B) √6

C) 5

D) √5

Answer & Explanation Answer: C) 5

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Filed Under: Simplification

If a + b = 17 and a - b = 9 then the value of $(4 a^{2} + 4 b^{2})$ is,

A) 710	B) 720
C) 730	D) 740

A) 710

B) 720

C) 730

D) 740

Answer & Explanation Answer: D) 740

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Filed Under: Quantitative Aptitude - Arithmetic Ability

The value of $\cos^{2} 20 ° + \cos^{2} 70 °$ is

A) √2	B) 2
C) 1	D) 1/√2

A) √2

B) 2

C) 1

D) 1/√2

Answer & Explanation Answer: C) 1

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Filed Under: Quantitative Aptitude - Arithmetic Ability

$If x + \frac{1}{x} = 2, then x^{2} + \frac{1}{x^{2}} = ?$

A) 0	B) 2
C) 4	D) 8

A) 0

B) 2

C) 4

D) 8

Answer & Explanation Answer: B) 2

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Filed Under: Quantitative Aptitude - Arithmetic Ability

If $x + \frac{1}{x} \neq 0 and x^{3} + \frac{1}{x^{3}} = 0, then the value of {(x + \frac{1}{x})}^{4} is :$

A) 9	B) 12
C) 15	D) 16

A) 9

B) 12

C) 15

D) 16

Answer & Explanation Answer: A) 9

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Filed Under: Simplification

If $3^{10} \times 27^{2} = 9^{2} \times 3^{n}$ then the value of n is

A) 10	B) 12
C) 15	D) 20

A) 10

B) 12

C) 15

D) 20

Answer & Explanation Answer: B) 12

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Filed Under: Simplification

The first Commonwealth Games in 1930 was held in which country?

A) Australia	B) England
C) New Zealand	D) Canada

A) Australia

B) England

C) New Zealand

D) Canada

Answer & Explanation Answer: D) Canada

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Filed Under: Sports

ABC is a triangle if $\sin (\frac{A + B}{2}) = \frac{\sqrt{3}}{2}$ then the value of Sin $\frac{c}{2}$ is

A) 12	B) 0
C) 1/2	D) 32

A) 12

B) 0

C) 1/2

D) 32

Answer & Explanation Answer: C) 1/2

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Filed Under: Quantitative Aptitude - Arithmetic Ability

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