Quantitative Aptitude - Arithmetic Ability Questions

Q:

Two numbers are 10% and 20% lesser than a third number respectively. By how much percent is the second number should be enhanced to make it equal to the first number?

A) 345 B) 375
C) 415 D) 315
 
Answer & Explanation Answer: D) 315

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Filed Under: Time and Distance
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Q:

What is the distance between the points (11,-5) and (-1,0)?

A) 169 units B) 12 units
C) 13 units D) 144 units
 
Answer & Explanation Answer: C) 13 units

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Filed Under: Time and Distance
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Q:

Five men or ten women can complete a job in 20 days. In how many days can 3 men and 4 women complete it?

A) 10 B) 25
C) 15 D) 20
 
Answer & Explanation Answer: D) 20

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Filed Under: Time and Work
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Q:

α and β are the roots of quadratic equation. If α + β = 8 and α – β = 2√5, then which of the following equation will have roots α4 and β4?

A) x2 – 1522x + 14641 = 0 B) x2 + 1921x + 14641 = 0
C) x2– 1764x + 14641 = 0 D) x2+ 2520x + 14641 = 0
 
Answer & Explanation Answer: A) x2 – 1522x + 14641 = 0

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Filed Under: Simplification
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Q:

What is the total number of points in the plane of triangle ABC which is equidistant from the vertices of the triangle?

A) 0 B) 1
C) 2 D) 3
 
Answer & Explanation Answer: B) 1

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Q:

What is the third proportional to 10 and 25?

A) 125 B) 150
C) 62.5 D) 225
 
Answer & Explanation Answer: C) 62.5

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Filed Under: Ratios and Proportions
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Q:

In a Δ ABC, DE || BC. D and E lie on AB and AC respectively. If AB = 7 cm and BD = 3cm, then find BC:DE

A) 2:2 B) 3:2
C) 3.5:2 D) 7:2
 
Answer & Explanation Answer: C) 3.5:2

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Q:

What is the simplified value of (cos A + sin A)(cot A + tan A)?

A) sec A + cosec A B) sin A + cos A
C) tan A + cot A D) sec A – cosec A
 
Answer & Explanation Answer: A) sec A + cosec A

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