Quantitative Aptitude - Arithmetic Ability Questions

Q:

What is the third proportional to 10 and 20?

A) 30 B) 25
C) 50 D) 40
 
Answer & Explanation Answer: D) 40

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Q:

If the value of √42 is approximately 6.480, then what is the approximate value of √(6/7)?

A) 0.925 B) 0.935
C) 0.945 D) 0.955
 
Answer & Explanation Answer: A) 0.925

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Q:

What will be the next set of numbers in the series? (2,3), (3,5), (5,7), (7,11), (11,13), ___

A) 13,15 B) 15,17
C) 13,17 D) 13,19
 
Answer & Explanation Answer: C) 13,17

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Q:

The length of one side of a rhombus is 13 cm and one of the diagonals is 10 cm. What is the legth of the other diagonal?

A) 24 cm B) 23 cm
C) 25 cm D) 22 cm
 
Answer & Explanation Answer: A) 24 cm

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Q:

In ΔABC, AC = BC and ∠ABC = 50°, the side BC is produced to D so that BC = CD then the value of ∠BAD is

A) 80° B) 40°
C) 90° D) 50°
 
Answer & Explanation Answer: C) 90°

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Q:

The point at which the perpendicular bisectors of the sides of a triangle intersect is known as _____________________

A) circum-centre B) orthocenter
C) centroid D) in-center
 
Answer & Explanation Answer: A) circum-centre

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Q:

Find the value of  x3 - y3, if x - y = 4 and xy = 12.

A) 198 B) 208
C) 218 D) 228
 
Answer & Explanation Answer: B) 208

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Q:

For triangle ABC, find equation of median AD if co­-ordinates of points A, B and C are (2,­4), (3,0) and (5,­2) respectively?

A) 3x -­ 2y = 14 B) 3x -­ 2y = 2
C) 3x + 2y = 14 D) 3x + 2y = 2
 
Answer & Explanation Answer: A) 3x -­ 2y = 14

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