Quantitative Aptitude - Arithmetic Ability Questions

Q:

If 49 is subtracted from the square of a number, then the result obtained is 576. What is the number?

A) 24 B) 25
C) 23 D) 27
 
Answer & Explanation Answer: B) 25

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Filed Under: Numbers
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Q:

If tanθ + cotθ = 5, then the value of tan2θ + cot2θ is

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

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Q:

If r sinθ=3 and r cosθ=1, then the values of r and θ are: (0°θ90°)

A) r=1, θ=30° B) r=1⁄2, θ=30°
C) r=3 , θ=30° D) r=2, θ=60°
 
Answer & Explanation Answer: D) r=2, θ=60°

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Q:

Which of the following equations has 3 as a root?

A) x2 -­ 7x + 12 = 0 B) x2 -­ 5x + 12 = 0
C) x2 + 3x + 12 = 0 D) x2 + 3x -­ 12 = 0
 
Answer & Explanation Answer: A) x2 -­ 7x + 12 = 0

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Filed Under: Square Roots and Cube Roots
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Q:

The length of the common chord of two intersecting circles is 12 cm. If the diameters of the circles are 15 cm and 13 cm, then what is the distance (in cm) between their centers?

A) 7/2 B) 7
C) 7√2 D) 14
 
Answer & Explanation Answer: B) 7

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Filed Under: Volume and Surface Area
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Q:

The point equidistant from the sides of a triangle is called

A) Circumcenter B) Incentre
C) Orthocentre D) Centroid
 
Answer & Explanation Answer: B) Incentre

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Q:

BD and CE are two medians of the triangle ABC. If EO = 7 cm, then the length of CE is

A) 28 cm B) 14 cm
C) 21 cm D) 35 cm
 
Answer & Explanation Answer: C) 21 cm

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Q:

If curved surface area of a cylinder is 1320 sq cm and height is 10 cm, find its radius?

A) 21 cm B) 42 cm
C) 63 cm D) 10.5 cm
 
Answer & Explanation Answer: A) 21 cm

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Filed Under: Volume and Surface Area
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