Quantitative Aptitude - Arithmetic Ability Questions

Q:

The two equal sides of an isosceles triangle is 20 cm each and the third side is 30 cm. What is the area(in cm2) of the triangle?

A) 50√5 B) 100
C) 75√7 D) 175
 
Answer & Explanation Answer: C) 75√7

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Filed Under: Area
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Q:

In the following question, select the odd letter from the given alternatives.

A) B B) N
C) P D) W
 
Answer & Explanation Answer: D) W

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Filed Under: Odd Man Out
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Q:

The cost price of an article is x. It is marked up by 120%. It is sold at Rs 8800 after giving 20% discount. What is the value (in Rs) of x?

A) 7680 B) 6000
C) 6680 D) 5000
 
Answer & Explanation Answer: D) 5000

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Filed Under: Percentage
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Q:

x, y be two acute angles, x + y < 90° and sin(2x - 20°) = cos(2y + 20°), the value of tan(x + y) is

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

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Filed Under: Area
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Q:

The reciprocal of the sum of the reciprocals of 2/9 and 7/10 is

A) 14/83 B) 83/14
C) 90/83 D) 83/90
 
Answer & Explanation Answer: A) 14/83

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Filed Under: Problems on Numbers
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Q:

If the profit is 20%, then what will be the ratio of cost price to selling price respectively?

A) 4 : 5 B) 5 : 6
C) 2 : 5 D) 3 : 4
 
Answer & Explanation Answer: B) 5 : 6

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Filed Under: Profit and Loss

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Q:

In what ratio tea at Rs 240/kg should be mixed with tea at Rs 280/kg so that on selling the mixture at Rs 324/kg there is a profit of 20%?

A) 1 : 1 B) 1 : 2
C) 1 : 3 D) 1 : 4
 
Answer & Explanation Answer: C) 1 : 3

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Q:

Product of digits of a 2-digit number is 15. If we add 18 to the number, the new number obtained is a number formed by interchange of the digits. Find the number.

A) 35 B) 15
C) 51 D) 21
 
Answer & Explanation Answer: A) 35

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Filed Under: Problems on Numbers
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