Quantitative Aptitude - Arithmetic Ability Questions

Q:

If A = 30°, B = 60° and C = 135°, then what is the value of sin3A + cos3B + tan3C  3sin A cos B tan C?

A) 0 B) 1
C) 8 D) 9
 
Answer & Explanation Answer: A) 0

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Filed Under: Simplification
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Q:

Find the common factor of (3757+4357) and (3737+4337) ?

A) (43 - 37) B) (43 + 37)
C) (37 + 37) D) 10
 
Answer & Explanation Answer: B) (43 + 37)

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Q:

If 1-aa3+9 = 19 - a1-a3, then what is the value of a?

A) 3/10, 7/10 B) 1/10, 9/10
C) 2/5, 3/5 D) 1/5, 4/5
 
Answer & Explanation Answer: B) 1/10, 9/10

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Filed Under: Square Roots and Cube Roots
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Q:

A boy running at 10/9 th of his actual speed covers 39 km in 2 hours 20 minutes and 24 seconds. Find the actual speed of the boy (approx.)

A) 15 kmph B) 50 kmph
C) 39 kmph D) 150 kmph
 
Answer & Explanation Answer: A) 15 kmph

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Filed Under: Time and Distance
Exam Prep: Bank Exams

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Q:

If the edge of a cube is increased by 10%, then what will be the percentage increase in its volume ?

A) 30 B) 31.3
C) 136.1 D) 33.1
 
Answer & Explanation Answer: D) 33.1

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Filed Under: Percentage
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Q:

Of the 5 numbers whose average is 76, the first is 3/7 times the sum of other 4. The first number is

A) 171 B) 114
C) 76 D) 228
 
Answer & Explanation Answer: B) 114

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Filed Under: Numbers
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Q:

If 7A = 5B = 2C; find A : B : C.

A) 35:14:10 B) 14:10:35
C) 2:5:7 D) 10:14:35
 
Answer & Explanation Answer: D) 10:14:35

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Filed Under: Ratios and Proportions
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Q:

The mean of 20 observations is 19. One more observation is included and the new mean becomes 20. The 21st observation is

A) 20 B) 30
C) 40 D) 42
 
Answer & Explanation Answer: C) 40

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Filed Under: Probability
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