Quantitative Aptitude - Arithmetic Ability Questions

Q:

θ is a positive acute angle and sinθ ­ cosθ = 0, then the value of secθ + cosecθ is

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

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Q:

The third proportional of two numbers 4 and 28 is _______.

A) 52 B) 56
C) 84 D) 196
 
Answer & Explanation Answer: D) 196

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Filed Under: Ratios and Proportions
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Q:

What will be the net discount (in percentage) for two successive discounts of 30% and 20%?

A) 50 B) 56
C) 44 D) 54
 
Answer & Explanation Answer: C) 44

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Q:

If tan2A - tan2B = x, then the value of x is

A) (sin2A - sin2B)/(cos2A cos2B) B) (sin2A sin2B)/(cos2A - cos2B)
C) (sin2A + sin2B)/(cos2A cos2B) D) (sin2A sin2B)/(cos2A + cos2B)
 
Answer & Explanation Answer: A) (sin2A - sin2B)/(cos2A cos2B)

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Q:

Simple interest on a sum for 5 years is equal to 20% of the principal. In how many years interest will be equal to the principal?

A) 20 B) 25
C) 15 D) 16
 
Answer & Explanation Answer: B) 25

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Q:

A batsman makes a score of 111 runs in the 10th match and thus increases his average runs per match by 5. What will be his average after the 10th match?

A) 66 B) 61
C) 62 D) 64
 
Answer & Explanation Answer: A) 66

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Q:

Point P is the midpoint of segment AB. Co-ordinates of P are (5,-4) and A are (7,0). What will be the co-ordinates of point B?

A) (3, -8) B) (-3, -8)
C) (3, 8) D) (-3, 8)
 
Answer & Explanation Answer: A) (3, -8)

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Q:

What is the value of Sin 30° + 2 Cos 30° ?

A) (2√2 + 3)/√6 B) (9 + 2√3)/9
C) (1 + 2√3)/2 D) (2√6 + 1)/√3
 
Answer & Explanation Answer: C) (1 + 2√3)/2

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