Quantitative Aptitude - Arithmetic Ability Questions

Q:

What is the average of 36, 43, 51, 68, and 77?

A) 47 B) 49
C) 55 D) 64
 
Answer & Explanation Answer: C) 55

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Q:

The average age of A and B is 18 years. After 3 years, C joins them and the average ages of A, B and C becomes 22 years. The age of C is ?

A) 20 years B) 21 years
C) 24 years D) 23 years
 
Answer & Explanation Answer: C) 24 years

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Q:

In these tests find the Odd figure out

A) a B) b
C) c D) d
 
Answer & Explanation Answer: D) d

Explanation:

It has odd number of sides while others have even number of sides.

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Q:

What is the value of [(tan 5θ + tan 3θ)/4 cos 4θ (tan 5θ – tan 3θ)]?

A) sin 2θ B) cos 2θ
C) tan 4θ D) cot 2θ
 
Answer & Explanation Answer: B) cos 2θ

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Q:

Δ PQR is right angled at Q. If m√R = 30°, then what is the value of Cot P?

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

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Q:

If p/q = r/s = t/u = √5, then what is the value of [(3p2 + 4r2 + 5t2)/(3q2 + 4s2 + 5u2)]?

A) 1/5 B) 5
C) 25 D) 60
 
Answer & Explanation Answer: B) 5

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Q:

What is the sum of a3+b3+c3-3abc, when the value of a=4, b=2 and c=-6?

A) 0 B) 2
C) 4 D) 6
 
Answer & Explanation Answer: A) 0

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Q:

Solve the following: (−18)[36÷7−(−2)]÷{}(−4)19−(−3)×(−5)={}?

A) -4.5 B) 4.5
C) -2.5 D) 2.5
 
Answer & Explanation Answer: B) 4.5

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