Quantitative Aptitude - Arithmetic Ability Questions

Q:

The third proportional of the following numbers (x - ­y)2, (x2 - y2)2 is

A) (x+y)3 (x-­y)2 B) (x+y)4 (x­-y)2
C) (x+y)2 (x-­y)2 D) (x+y)2 (x-y)3
 
Answer & Explanation Answer: B) (x+y)4 (x­-y)2

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Filed Under: Ratios and Proportions
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Q:

A ladder 20 m long is leaning against a vertical wall. It makes an angle of 30 deg with the ground. How high on the wall does the ladder reach?

A) 10 m B) 17.32 m
C) 34.64 m D) 3 m
 
Answer & Explanation Answer: A) 10 m

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Q:

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

A) CEF B) GIJ
C) LNO D) STW
 
Answer & Explanation Answer: D) STW

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Filed Under: Odd Man Out
Exam Prep: Bank Exams

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Q:

If a + b = 1, then a4 + b4 - a3 - b3 - 2a2b2 + ab is equal to

A) 1 B) 2
C) 4 D) 0
 
Answer & Explanation Answer: D) 0

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Filed Under: Simplification
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Q:

If x = 1 + √2 + √3 , then the value of 2x4 - 8x3 - 5x2 + 26x - 28 is

A) 2√2 B) 3√3
C) 5√5 D) 6√6
 
Answer & Explanation Answer: D) 6√6

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Q:

If a4 + 1 = [a2 /b2 ] (4b2  b4  1), then what is the value of a4 + b4?

A) 2 B) 16
C) 32 D) 64
 
Answer & Explanation Answer: A) 2

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Q:

Reflection of the point (4,­6) in the origin is

A) (4,6) B) (­-4,­-6)
C) (­-4,6) D) (4,­-6)
 
Answer & Explanation Answer: C) (­-4,6)

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Q:

Select the odd number from the given alternatives.

A) 42 B) 84
C) 91 D) 71
 
Answer & Explanation Answer: D) 71

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Filed Under: Odd Man Out
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