Quantitative Aptitude - Arithmetic Ability Questions

Q:

If [a + (1/a)]2  2[a  (1/a)] = 12, then which of the following is a value of 'a'?

A) – 8 + √3 B) – 8 – √3
C) – 8 + √5 D) None of these
 
Answer & Explanation Answer: D) None of these

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Q:

The simplified form of (x + 3)2 + (x - 1)2 is

A) (x2 + 2x + 5) B) 2(x2 + 2x + 5)
C) (x2 - 2x + 5) D) 2(x2 - 2x + 5)
 
Answer & Explanation Answer: B) 2(x2 + 2x + 5)

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Q:

Determine the value of ‘r’ for which the equation 13x + 5 = rx + 18 has no solution.

A) 0 B) 5
C) 13 D) 18
 
Answer & Explanation Answer: C) 13

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Q:

The diameter of a circle is 28 cm find its area?

A) 616 sq cm B) 308 sq cm
C) 154 sq cm D) 77 sq cm
 
Answer & Explanation Answer: A) 616 sq cm

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Q:

Which of the following triangle has the maximum area when inscribed inside the circle of same radius?

A) Scalene B) Isosceles  
C) Equilateral D) Right angled
 
Answer & Explanation Answer: C) Equilateral

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Q:

What is the quotient when 7251 is divided by 66?

A) 110 B) 109
C) 111 D) 112
 
Answer & Explanation Answer: B) 109

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Filed Under: Problems on Numbers
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Q:

Two fractions are such that their product is ­4 and sum is ­32/15. Find the two fractions.

A) 6/15, ­-10/3 B) 6/5, ­-10/3
C) 7/2, ­-8/7 D) -10/7, 14/5
 
Answer & Explanation Answer: A) 6/15, ­-10/3

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Q:

In ΔPQR, ∠QPR = 45° and the bisectors of ∠PQR and ∠PRQ meets at O. What is the value (in degrees) of ∠QOR?

A) 107.5 B) 112.5
C) 117.5 D) 122.5
 
Answer & Explanation Answer: B) 112.5

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Filed Under: Volume and Surface Area
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