Quantitative Aptitude - Arithmetic Ability Questions

Q:

Find out the odd word/letters/number/number pair from the given alternatives.

A) Pen drive B) Floppy disk
C) CD ROM D) Mouse
 
Answer & Explanation Answer: D) Mouse

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Q:

What is the equation of the line which passes through the points (3,­2) and (5,3)?

A) 5x ­- 2y = ­-19 B) 5x ­- 2y = 19
C) 5x + 2y = ­31 D)  5x + 2y = -31
 
Answer & Explanation Answer: B) 5x ­- 2y = 19

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Q:

If y = √3 - √2, then find the value of 1y3 - y3.

A) 11 B) 11√2
C) 22 D) 22√2
 
Answer & Explanation Answer: D) 22√2

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Q:

If 51.97 ­ (81.18 -­ x ) ­- 59.39 = 5.268, then value of x will be

A) - 24.912 B) - 68.492
C) 93.868 D) 197.808
 
Answer & Explanation Answer: C) 93.868

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Q:

ABC is an equilateral triangle of side 6 cm. If a circle of radius 1 cm is moving inside and along the sides of the triangle, then the locus of the centre of the circle is an equilateral triangle of side is

A) 5 cm B) (6 - 2√3) cm
C) 4 cm D) (3 + √3) cm
 
Answer & Explanation Answer: B) (6 - 2√3) cm

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Q:

When [x + (1/x)] = 5, then what is the value of [x – (1/x)]?

A) 11 B) ± √22
C) 21 D) ± √21
 
Answer & Explanation Answer: D) ± √21

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Q:

The value of a machine depreciates at the rate of 20% per annum. If its present value is Rs 96000, then what was the value (in Rs) of the machine 2 years ago?

 

A) 138240   B) 134400  
C) 150000   D) 144000
 
Answer & Explanation Answer: C) 150000  

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Q:

Two successive discounts of 10% and 25% are given by Raman on a shirt. If the marked price of the shirt is Rs 600, then what is the value (in Rs) of discount?

 

A) 195   B) 185  
C) 155   D) 135
 
Answer & Explanation Answer: A) 195  

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