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 Quantitative Aptitude - Arithmetic Ability Questions

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Q:

Which of the following quadratic equations has real roots?

A) 3x2 -­ 5x + 2 = 0 B) 3x2 -­ 4x + 2 = 0
C) 4x2 -­ 3x + 2 = 0 D) 5x2 -­ 2x + 2 = 0
 
Answer & Explanation Answer: A) 3x2 -­ 5x + 2 = 0

Explanation:
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Q:

The value of x for which the expressions 15x + 4 and 13x - 2 become equal is ______

A) -1 B) 1
C) -3 D) 3
 
Answer & Explanation Answer: C) -3

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Q:

In these tests find the Odd figure out

A) a B) b
C) c D) d
 
Answer & Explanation Answer: B) b

Explanation:
In option B shaded circle is common of all three circles but in others the shaded circle is the common part of only two circles.
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Q:

Select the odd letters from the given alternatives.

A) NML B) EDC
C) QRS D) WVU
 
Answer & Explanation Answer: C) QRS

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Q:

Triangle DEF is right angled at E. If cot D = 5/12, then what is the value of sin F?

A) 5/12 B) 13/5
C) 5/13 D) 13/12
 
Answer & Explanation Answer: C) 5/13

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Q:

If (1 -­ cosA)/(1 + cosA) = x, then the value of x is

A) (cotA + cosecA)2 B) (cotA -­ cosecA)2
C) cotA -  cosecA D) cotA + cosecA
 
Answer & Explanation Answer: B) (cotA -­ cosecA)2

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Q:

In the following question, select the odd letters from the given alternatives.

A) 234 B) 345
C) 243 D) 432
 
Answer & Explanation Answer: B) 345

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Q:

If cosec π/4 - ­ sin π/3 = x, then the value of x is

A) 4/√3 B) (2√2­-√3)/2
C) (1­-√3)/√3 D) √3+2
 
Answer & Explanation Answer: B) (2√2­-√3)/2

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