Quantitative Aptitude - Arithmetic Ability Questions

Q:

In a class of 60 students there are 30 girls. The average weight of these girls is 58 Kg and average weight of the full class is 63 kgs. What is the average weight of the boys of the class?

A) 67 B) 66
C) 68 D) 65
 
Answer & Explanation Answer: C) 68

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Q:

Asif is twice as good as workman as Bashir and together they finish a piece of work in 30 days. In how many days will Asif alone finish the work?

A) 90 B) 45
C) 60 D) 75
 
Answer & Explanation Answer: B) 45

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Q:

The area of the square field is 196 sq.m. Its each side is

A) 16 m B) 17 m
C) 14 m D) 13 m
 
Answer & Explanation Answer: C) 14 m

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Q:

If cosec θ + sinθ = 5/2 then the value of cosecθ - sinθ is

A) -3/2 B) 3/2
C) −√3/2 D) √3/2
 
Answer & Explanation Answer: B) 3/2

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Q:

If a3 + b3 = 28 and a + b = 4, then what is the value of ab?

A) -3 B) 2
C) 8 D) 3
 
Answer & Explanation Answer: D) 3

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Q:

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

A) 170 B) 290
C) 360 D) 530
 
Answer & Explanation Answer: C) 360

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Q:

From a point, 40 m apart from the foot of a tower, the angle of elevation of its top is 60°. The height of the tower is

A) 40√3 km B) 40√3 cm
C) 40√3 m D) 40√2 m
 
Answer & Explanation Answer: C) 40√3 m

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Q:

The average of 6 consecutive integers is 15/2. What is the average of last three integers?

A) 8 B) 9
C) 17/2 D) 7
 
Answer & Explanation Answer: B) 9

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