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 Quantitative Aptitude - Arithmetic Ability Questions

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Q:

Which of the following quadratic equations has real roots?

A) 4x2 -­ 9x + 6 = 0 B) 3x2 -­ 2x + 6 = 0
C) 2x2 -­ 7x + 6 = 0 D) x2 -­ 2x + 2 = 0
 
Answer & Explanation Answer: C) 2x2 -­ 7x + 6 = 0

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Filed Under: Simplification
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Q:

Find the odd words/letter/number from the given alternatives:

A) 28­-21 B) 31­-38
C) 45-­52 D) 64­-71
 
Answer & Explanation Answer: A) 28­-21

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Filed Under: Odd Man Out
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Q:

Select the odd word/letters/number/number pair from the given alternatives.

A) 532 B) 413
C) 111 D) 541
 
Answer & Explanation Answer: C) 111

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Q:

ΔABC is similar to ΔPQR. Length of AB is 18 cm and length of the corresponding side PQ is 12 cm. If area of ΔABC is 324 sq cm, what is the area of ΔPQR?

A) 72 sq cm B) 144 sq cm
C) 36 sq cm D) 487.5 sq cm
 
Answer & Explanation Answer: B) 144 sq cm

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Filed Under: Volume and Surface Area
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Q:

What is the average of all numbers between 8 and 74 which are divisible by 7?

A) 40 B) 41
C) 42 D) 43
 
Answer & Explanation Answer: C) 42

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Filed Under: Average
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Q:

The median of the numbers 14, 12, 12, 16, 13 and 18 is

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

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Q:

The total surface area of a hemisphere is 462 sq cm, what is its curved surface area? (Take π = 22/7)

A) 616 sq cms B) 154 sq cms
C) 308 sq cms D) 462 sq cms
 
Answer & Explanation Answer: C) 308 sq cms

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Filed Under: Volume and Surface Area
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Q:

Which of the following is correct?

A) (6x + y)(x - 6y) = 6x^2+ 35xy - 6y^2 B) (6x + y)(x - 6y) = 6x^2- 35xy - 6y^2
C) (6x + y)(x - 6y) = 6x^2- 37xy - 6y^2 D) (6x + y)(x - 6y) = 6x^2+ 37xy - 6y^2
 
Answer & Explanation Answer: B) (6x + y)(x - 6y) = 6x^2- 35xy - 6y^2

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Filed Under: Quantitative Aptitude - Arithmetic Ability
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