Quantitative Aptitude - Arithmetic Ability Questions

Q:

The height of a tower is 50√3 m. The angle of elevation of a tower from a distance 50 m from its feet is

A) 30° B) 45°
C) 60° D) 90°
 
Answer & Explanation Answer: C) 60°

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Q:

Which of the following is correct?

A) (4x + 5y)(5x - 4y) = 20x2 + 9xy - 20y2 B) (4x + 5y)(5x - 4y) = 20x2 + 41xy - 20y2
C) (4x + 5y)(5x - 4y) = 20x2 - 9xy + 20y2 D) (4x + 5y)(5x - 4y) = 20x2 - 41xy + 20y2
 
Answer & Explanation Answer: A) (4x + 5y)(5x - 4y) = 20x2 + 9xy - 20y2

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

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

A) 93 B) 89
C) 79 D) 81
 
Answer & Explanation Answer: D) 81

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Filed Under: Odd Man Out
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Q:

In the following question, four number pairs are given. The number on left side of (–) is related to the number of the right side of (–) with some Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives .

 

 

A) 10 – 14 B) 14 – 18
C) 12 – 16 D) 16 – 24
 
Answer & Explanation Answer: D) 16 – 24

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Filed Under: Odd Man Out
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Q:

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

A) Lotus Temple B) India Gate
C) Qutub Minar D) Gateway of India
 
Answer & Explanation Answer: D) Gateway of India

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Filed Under: Odd Man Out
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Q:

If 7x + 2 ≥ x - 2 and 7 + 2x ≥ 3 + 3x; then x can take which of the following values?

A) 5 B) 3
C) -3 D) -5
 
Answer & Explanation Answer: B) 3

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Q:

Find the volume (in cub.cm) of a hemisphere of diameter 21 cm.

A) 2235.5 B) 2425.5
C) 2040 D) 1860
 
Answer & Explanation Answer: B) 2425.5

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Filed Under: Volume and Surface Area
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Q:

What is the value of Cot 60°- Cos 45°?

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

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Filed Under: Volume and Surface Area
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