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 Quantitative Aptitude - Arithmetic Ability Questions

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Q:

Which of the following equations has real and distinct roots?

A) 3x2 - 6x + 2 = 0 B) 3x2 - 6x + 3 = 0
C) x2 - 8x + 16 = 0 D) 4x2 - 8x + 4 = 0
 
Answer & Explanation Answer: A) 3x2 - 6x + 2 = 0

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Q:

The line passing through (­3,4) and (0,3) is perpendicular to the line passing through (5,7) and (4,x). What is the value of x?

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

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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:

Sec 45% + Tan 30% =

A) (√6 + 1)/√3 B) (1 + √3)/2
C) (√3 + 2)/√3 D) 5/√3
 
Answer & Explanation Answer: A) (√6 + 1)/√3

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Q:

The value of 1+tan2∅(1-sin2∅) is

A) 2 B) 1
C) -1 D) -2
 
Answer & Explanation Answer: B) 1

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Q:

The addition of a rational number and its reciprocal is 61/30. Calculate the number.

A) 5/6, 6/5 B) 5/6, 7/5
C) 7/6, 6/5 D) 7/6, 7/5
 
Answer & Explanation Answer: A) 5/6, 6/5

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Q:

For the data given below. find the sum of mode. median and mean.6, 3, 8, 4, 3, 11, 7, 4, 5, 4.

A) 13.5 B) 13
C) 14 D) 14.5
 
Answer & Explanation Answer: C) 14

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Q:

What is that least number that must be added to the product 684 × 686 to make it a perfect square?

A) 685 B) 1
C) 684 D) 686
 
Answer & Explanation Answer: B) 1

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