Quantitative Aptitude - Arithmetic Ability Questions

Q:

What is the value of z2+1z2 when z = 5+26 ?

A) 49 B) 50
C) 98 D) 100
 
Answer & Explanation Answer: C) 98

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Q:

2 ­- (cosA + sinA)2 is equal to

A) (cosecA -­ sinA)2 B) cosA ­- sinA
C) cosecA ­- sinA D) (cosA -­ sinA)2
 
Answer & Explanation Answer: D) (cosA -­ sinA)2

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Q:

Select the odd word/letters/number/number pair from the given alternatives.

A) 27 B) 125
C) 8 D) 729
 
Answer & Explanation Answer: C) 8

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Q:

30% of a number exceeds 25% of the same number by 27. What is the value of the number?

A) 540 B) 270
C) 108 D) 90
 
Answer & Explanation Answer: A) 540

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Q:

In a triangle PQR, ∠PQR = 90 deg, PQ = 10 cm and PR = 26 cm, then what is the value (in cm) of inradius of incircle?

A) 9 B) 4
C) 8 D) 6
 
Answer & Explanation Answer: B) 4

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Q:

If cosA/(1 - sinA) = x, then the value of x is

A) secA - tanA B) cosecA + tanA
C) secA + tanA D) cosecA - tanA
 
Answer & Explanation Answer: C) secA + tanA

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Q:

What is the value of cos2A/(1 + sinA)?

A) 1 + sinA B) 1 ­- sinA
C) 1 -­ secA D) 1 + secA
 
Answer & Explanation Answer: B) 1 ­- sinA

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Q:

If θ is acute angle and sin(θ+18°)= 1/2, then the value of θ in circular measure is

A) Π/12 radians B) Π/15 radians
C) 2Π/5 radians D) 3Π/13 radians
 
Answer & Explanation Answer: B) Π/15 radians

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