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 Quantitative Aptitude - Arithmetic Ability Questions

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Q:

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

A) 65 - 90 B) 73 - 97
C) 112 - 137 D) 162 - 187
 
Answer & Explanation Answer: B) 73 - 97

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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 on 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) 2 – 4 B) 4 – 16
C) 6 – 36 D) 8 – 66
 
Answer & Explanation Answer: D) 8 – 66

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Q:

Given that the polynomial (x2+ ax+ b) leaves that same remainder when by (x –1) or (x + 1) What are the values of a and b respectively?

A) 4 and 0 B) 0 and 3
C) 3 and 0 D)  0 and any interger
 
Answer & Explanation Answer: D)  0 and any interger

Explanation:

Since x^2+ ax + b when divided by x-1 or x+1 leaves the same remainder

So on putting x=1 and x=-1 we get the same value

1+a+b = 1-a+b

2a=0

a=0

here b can take any value as it will always get cancelled out

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Q:

What is the reflection of the point (6, -3) in the line y = 2?

A) (-2 , -3) B) (6 , 7)
C) (-6 , 7) D) (-2 , 3)
 
Answer & Explanation Answer: B) (6 , 7)

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Q:

What is the area (in sq cm) of a circle whose circumference is 22 cm?

A) 77 B) 38.5
C) 44 D) 88
 
Answer & Explanation Answer: B) 38.5

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Filed Under: Area
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Q:

If the perimeter of a semicircle is 36 cm, then find its area (in cm2).

A) 154 B) 35
C) 77 D) 70
 
Answer & Explanation Answer: C) 77

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Q:

If Cot θ = 21/20, then what is the value of Cosec θ?

A) 21/29 B) 29/21
C) 20/29 D) 29/20
 
Answer & Explanation Answer: D) 29/20

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Filed Under: Simplification
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Q:

The circumference of a circle is 110 cm. Find its radius (in cm).

A) 35 B) 19.5
C) 17.5 D) 39
 
Answer & Explanation Answer: C) 17.5

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