Quantitative Aptitude - Arithmetic Ability Questions

Q:

The area of a triangle with vertices A (0, 8) , O (0,0) and B (5, 0) is:

A) 8 sq. units B) 13 sq. units
C) 20 sq. units D) 40 sq. units
 
Answer & Explanation Answer: C) 20 sq. units

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Q:

The length of a rectangle is increased by 25%. To maintain the same area, the breadth has to be decreased by

A) 20% B) 25%
C) 30% D) 40%
 
Answer & Explanation Answer: A) 20%

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Q:

If sinA + sin2A = 1 then what is the value of cos2A + cos4A ?

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

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Filed Under: Simplification
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Q:

What is the simplified value of cosec6A  cot6A  3 cosec2A cot2A?

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

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Q:

Some one rupee, 50 paisa and 25 paisa coins make up rupees 93.75 and their numbers are in the proportion of 3 : 4 : 5. Find the number of each type of coins?

A) 42, 56, 70 B) 45, 60, 75
C) 40, 70, 75 D) 46, 58, 75
 
Answer & Explanation Answer: B) 45, 60, 75

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Filed Under: Ratios and Proportions
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Q:

ΔPQR is right angled at Q. QS is the altitude. PQ is 2√13 cm and PS is 8 cm. What is the length of SR?

A) 6√13 cm B) 4√13 cm
C) 18 cm D) 9 cm
 
Answer & Explanation Answer: C) 18 cm

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Q:

The area of an equilateral triangle is 25√3 sq.cm. Find its side (in cm).

A) 10 B) 5
C) 20 D) 30
 
Answer & Explanation Answer: A) 10

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Q:

The ratio of present ages of Raman and Lamba is 7 : 5. After 6 years age of Raman will be 48 years. What is the present age (in years) of Lamba?

A) 30 B) 25
C) 35 D) 40
 
Answer & Explanation Answer: A) 30

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Filed Under: Problems on Ages

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