Quantitative Aptitude - Arithmetic Ability Questions

Q:

For triangle PQR, find equation of altitude PS if co­-ordinates of P, Q and R are (6,2), (0,3) and (­-4,5) respectively?

A) 2x -­ y = 14 B) 2x + y = 10
C) 2x -­ y = 10 D) 2x + y = 14
 
Answer & Explanation Answer: C) 2x -­ y = 10

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Q:

If ax + by = 1 and bx + ay  = 2aba2+b2 then x2+y2a2+b2 is equal to

A) 1 B) 2
C) 0.5 D) 0
 
Answer & Explanation Answer: A) 1

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Q:

If cos2x + cos4x = 1, then tan2x + tan4x =

A) 0 B) 1
C) 2tanx D) tanx
 
Answer & Explanation Answer: B) 1

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Q:

Mohan earns a profit of 20% on selling a jean at 15% discount on printed price. The ratio of the cost price to printed price of the jean is

A) 17:24 B) 17:34
C) 16:13 D) 21:23
 
Answer & Explanation Answer: A) 17:24

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Q:

Coefficient of x2 in 4x3 - 2x2 + 2x -­ 3 are

A) 6 B) -2
C) 3 D) -3
 
Answer & Explanation Answer: B) -2

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Q:

The point P(a,b) is first reflected in origin to P1 and P1 is reflected in y-­axis to (6,­-5). The co-­ordinates of point P are

A) (­-6,­-5) B) (6,5)
C) (­6,-5) D) (-6,­5)
 
Answer & Explanation Answer: B) (6,5)

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Q:

If cos 27° = x, the value of tan 63° is

A) x1-x2 B) x1+x2
C) 1-x2x D) 1+x2x
 
Answer & Explanation Answer: A) x1-x2

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Q:

What is the slope of the line parallel to the line passing through the points (-2, -1) and (4, -3)?

A) 1/3 B) -1/3
C) -3 D) 3
 
Answer & Explanation Answer: B) -1/3

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