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Q:

If x + (1/x) = 2, then what is the value of $x^{64} + x^{121}$ ?

A) 0	B) 1
C) 2	D) -2

Answer & Explanation Answer: A) 0

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Filed Under: Quantitative Aptitude - Arithmetic Ability

Q:

If X+Y=3,XY=2, find the value of $X^{3}$ - $Y^{3}$

A) 7	B) 3
C) 5	D) 9

Answer & Explanation Answer: A) 7

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Filed Under: Quantitative Aptitude - Arithmetic Ability
Exam Prep: AIEEE , Bank Exams

Q:

If $a$ - $\frac{1}{a}$ =7,then $a^{2}$ + $\frac{1}{a^{2}}$ =?

A) 54	B) 51
C) 53	D) 52

Answer & Explanation Answer: B) 51

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Filed Under: Simplification
Exam Prep: AIEEE , Bank Exams , CAT

Q:

The simplified form of ${(4 x + 3)}^{2} . (3 x - 5) - (4 x^{3} - 12 x^{2} + 9 x - 20)$ is

A) 6x2- 48x - 50	B) 24x3 + 2x2 - 32x - 15
C) 44x3 + 4x2 - 102x - 25	D) 24x3 + 8x2 - 42x - 50

Answer & Explanation Answer: C) 44x3 + 4x2 - 102x - 25

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Filed Under: Square Roots and Cube Roots
Exam Prep: AIEEE , Bank Exams , CAT

Q:

If x + y = 12 and xy = 32, then what is the value of $x^{2} + y^{2}$ ?

A) 24	B) 144
C) 128	D) 80

Answer & Explanation Answer: D) 80

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Filed Under: Simplification
Exam Prep: Bank Exams

Q:

What is the value of $(4 a^{2} - 9 b^{2}) / (2 a + 3 b)$ is

A) 2a - 3b	B) 2a + 3b
C) 2a	D) 3b

Answer & Explanation Answer: A) 2a - 3b

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Filed Under: Simplification
Exam Prep: AIEEE , Bank Exams , CAT

Q:

If x - y = -9 and xy = -20, then find $x^{2} + y^{2}$ ?

A) 61	B) 41
C) 81	D) 51

Answer & Explanation Answer: B) 41

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Filed Under: Simplification
Exam Prep: AIEEE , Bank Exams , CAT

Q:

If ${(secA - tanA)}^{2} = x$ , then the value of x is

A) (1 + sinA)/(1 - sinA)	B) √[(1 - sinA)/(1 + sinA)]
C) (1 - sinA)/(1 + sinA)	D) √[(1 + sinA)/(1 - sinA)]

Answer & Explanation Answer: C) (1 - sinA)/(1 + sinA)

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Filed Under: Quantitative Aptitude - Arithmetic Ability

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