Quantitative Aptitude - Arithmetic Ability Questions

Q:

If the two lines px + 6y+3=0 and 2x + qy+3=0 have infinite solutions then find the value of p and q respectively.

A) 2,6 B) 6,2
C) 2,2 D) 6,6
 
Answer & Explanation Answer: A) 2,6

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Q:

Which of the following is equivalent to 0.565656...?

A) 56/100 B) 56/1000
C) 56/99 D) 560/90
 
Answer & Explanation Answer: C) 56/99

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Q:

What is the equation of the line passing through the point (0,­4) and making an angle of ­45° with the positive x­axis?

A) x + y = 4 B) x -­ y = - ­4
C) x + y = -­4 D) x ­- y = 4
 
Answer & Explanation Answer: C) x + y = -­4

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Q:

What is the simplified value of (sec A + cos A)(sec A – cos A)?

A) 2 tan2A B) 2 sin2 A
C) sin2 A tan2 A D) sin2A + tan2 A
 
Answer & Explanation Answer: D) sin2A + tan2 A

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Q:

The surface area of a sphere is 5544 sq.cm. Find its diameter (in cm).

A) 42 B) 21
C) 84 D) 63
 
Answer & Explanation Answer: A) 42

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Q:

The side of an equilateral triangle is 8 cm. Find its area (in cm2).

A) 25√3 B) 16√2
C) 25√2 D) 16√3
 
Answer & Explanation Answer: D) 16√3

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Q:

A factory buys 8 machines. 3 Machine­A, 4 Machine­B and rest Machine­C. Prices of the machines are Rs 45000, Rs 25000 and Rs 35000 respectively. Calculate the average cost (in Rs) of these machines?

A) 33750 B) 35000
C) 36250 D) 32250
 
Answer & Explanation Answer: A) 33750

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Q:

Convert decimal 99 to binary.

A) 1100101 B) 1101001
C) 11100011 D) 1100011
 
Answer & Explanation Answer: D) 1100011

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Filed Under: Problems on Numbers
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