Quantitative Aptitude - Arithmetic Ability Questions

Q:

Δ LMN is right angled at M. If m∠N = 45°, what is the length of MN (in cm), if NL = 9√2 cm?

A) 9√2 B) 9/√2
C) 18 D) 9
 
Answer & Explanation Answer: D) 9

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Q:

ΔPQR is right angled at Q. QS is the altitude. PQ is 4√29 cm and PS is 8 cm. Find length of SR?

A) 10√29 cm B) 8√29 cm
C) 50 cm D) 20 cm
 
Answer & Explanation Answer: C) 50 cm

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Q:

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

A) 2890 B) 3375
C) 1728 D) 1331
 
Answer & Explanation Answer: A) 2890

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Q:

Determine the value of 'x' when 3x3 = 27

A) 1 B) 3
C) 9 D) 12
 
Answer & Explanation Answer: C) 9

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Q:

A fraction is greater than its reciprocal by (72)/(77). What is the fraction?

A) 7/11 B) 11/7
C) 4/7 D) 7/4
 
Answer & Explanation Answer: B) 11/7

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Q:

Length and breadth of a rectangle are increased by 40% and 70% respectively. What will be the percentage increase in the area of rectangle?

A) 118 B) 110
C) 138 D) 128
 
Answer & Explanation Answer: C) 138

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Q:

Calculate the area (in cm2 ) of a circle of radius 10.5 cm.

A) 693 B) 157.5
C) 315 D) 346.5
 
Answer & Explanation Answer: D) 346.5

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Q:

In an equilateral triangle ABC, G is the centroid. Each side of the triangle is 6 cm. The length of AG is

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

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