Aptitude and Reasoning Questions

Q:

tanAcosec2A is equal to

A) (1 + tan2A)cotA B) (1 -­ tan2A)cotA
C) √[(1 + tan2A)cotA] D) √[(1 -­ tan2A)cotA]
 
Answer & Explanation Answer: A) (1 + tan2A)cotA

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Q:

If a -­ b = 3 and ab =28, then a3 - b3 is

A) 279 B) 387
C) 513 D) 91
 
Answer & Explanation Answer: A) 279

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Q:

Two points P and Q are at the distance of x and y (where y > x) respectively from the base of a building and on a straight line. If the angles of elevation of the top of the building from points P and Q are complementary, then what is the height of the building?

A) xy B) √( y/ x)
C) √( x/ y) D) √( xy)
 
Answer & Explanation Answer: D) √( xy)

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Q:

Find the odd words/letters/number from the given alternatives.

A) 5,124 B) 7,342
C) 3,26 D) 2,15
 
Answer & Explanation Answer: D) 2,15

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Q:

Find the odd numbers/letters/numbers from the given alternatives.

A) Red B) Brown
C) Green D) Yellow
 
Answer & Explanation Answer: B) Brown

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Q:

Two numbers are 50% and 90% lesser than a third number. By how much percent is the second number to be enhanced to make it equal to the first number?

A) 80 percent B) 40 percent
C) 44.44 percent D) 400 percent
 
Answer & Explanation Answer: D) 400 percent

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Q:

If sin - 4π/3 = x, then the value of x is

A) -2 B) -2/√3
C) √3/2 D) √2
 
Answer & Explanation Answer: C) √3/2

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Q:

ax + 3y = 6 has slope -2/3. What is the value of a?

A) -2 B) 2
C) 3 D) -3
 
Answer & Explanation Answer: B) 2

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