Quantitative Aptitude - Arithmetic Ability Questions

Q:

If a = 1/a-5, then the value of a + 1/a = ?

A) √29 B) √-29
C) - √29 D) √27
 
Answer & Explanation Answer: A) √29

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Filed Under: Simplification
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Q:

If x + y = 10 and x2 + y2 = 68, then find xy

A) 21 B) 24
C) 25 D) 16
 
Answer & Explanation Answer: D) 16

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Q:

If 2 pair of trouser is offered free on purchase of 3 pair of trousers priced Rs 900 each what is the effective discount on each pair of trouser?

A) 40 percent B) 33.33 percent
C) 30 percent D) 20 percent
 
Answer & Explanation Answer: A) 40 percent

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Filed Under: Percentage
Exam Prep: Bank Exams

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Q:

If 1-aa3+9 = 19 - a1-a3, then what is the value of a?

A) 3/10, 7/10 B) 1/10, 9/10
C) 2/5, 3/5 D) 1/5, 4/5
 
Answer & Explanation Answer: B) 1/10, 9/10

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Filed Under: Square Roots and Cube Roots
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Q:

Reflection of the point (2,-4) in the origin is

A) (2,4) B) (-2,-4)
C) (2,-4) D) (-2,4)
 
Answer & Explanation Answer: D) (-2,4)

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Q:

In a right angled triangle if hypotenuse is 20 cm and ratio of other two sides is 4:3, the length of the sides are

A) 4 cm and 3 cm B) 8 cm and 6 cm
C) 12 cm and 9 cm D) 16 cm and 12 cm
 
Answer & Explanation Answer: D) 16 cm and 12 cm

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Filed Under: Volume and Surface Area
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Q:

A dealer marks his goods 20% above their cost prices. Then,he allows such a discount on the marked price so that he makes a profit of 8%. The rate of discount is:

A) 12% B) 10%
C) 6% D) 4%
 
Answer & Explanation Answer: B) 10%

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Q:

Triangle PQR is inscribed in the circle whose radius is 14 cm. If PQ is the diameter of the circle and PR = 10 cm, then what is the area of the triangle PQR?

A) 196 B) 30√19
C) 40√17 D) 35√21
 
Answer & Explanation Answer: B) 30√19

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Filed Under: Area
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