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ΔABC is similar to ΔDEF. If the ratio of similar sides is K:1, the ratio of their areas is

A) k2:1	B) 2k:1
C) k22:1	D) 2k2:1

A) k2:1

B) 2k:1

C) k22:1

D) 2k2:1

Answer & Explanation Answer: A) k2:1

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Filed Under: Quantitative Aptitude - Arithmetic Ability

If k is the largest possible real number such that $p^{4} + q^{4} = (p^{2} + k p q + q^{2}) (p^{2} - k p q + q^{2}),$ then the value of k is

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

A) 1

B) -2

C) 2

D) 2

Answer & Explanation Answer: D) 2

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Filed Under: Quantitative Aptitude - Arithmetic Ability

If $a + b + c = 15 a n d \frac{1}{a} + \frac{1}{b} + \frac{1}{c} = \frac{71}{a b c},$ then the $a^{3} + b^{3} + c^{3} - 3 a b c$ is

A) 160	B) 180
C) 200	D) 220

A) 160

B) 180

C) 200

D) 220

Answer & Explanation Answer: B) 180

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Filed Under: Quantitative Aptitude - Arithmetic Ability

If $y = 2 s e c θ a n d x = 3 \tan θ t h e n \frac{x^{2}}{9} - \frac{y^{2}}{4}$ is

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

A) 0

B) -1

C) 2

D) 1

Answer & Explanation Answer: B) -1

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Filed Under: Quantitative Aptitude - Arithmetic Ability

If $a^{2} + 1 = 9 a, (a \neq 0)$ then the value of ${(a)}^{2} + \frac{1}{{(a)}^{2}}$ is

A) 81	B) 18
C) 79	D) 83

A) 81

B) 18

C) 79

D) 83

Answer & Explanation Answer: C) 79

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Filed Under: Quantitative Aptitude - Arithmetic Ability

If $x + 5 + \frac{1}{x + 1} = 6$ then the value of ${(x + 1)}^{3} + \frac{1}{(x + 1)}$ ³ is

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

A) 2

B) 0

C) -2

D) 4

Answer & Explanation Answer: A) 2

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Filed Under: Quantitative Aptitude - Arithmetic Ability

If price of an article decreases from P1 to Rs 25, quantity demanded increases from 900 units to 1200 units. If point elasticity of demand is 2 find P1?

A) Rs. 20	B) Rs. 30
C) Rs. 25	D) Rs. 35

A) Rs. 20

B) Rs. 30

C) Rs. 25

D) Rs. 35

Answer & Explanation Answer: B) Rs. 30

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Filed Under: Physics

Delonix regia Rafin is the scientific name of

A) Banyan	B) Gulmohar
C) Tamarind	D) Chiku

A) Banyan

B) Gulmohar

C) Tamarind

D) Chiku

Answer & Explanation Answer: B) Gulmohar

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Filed Under: General Science

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