Quantitative Aptitude - Arithmetic Ability Questions

Q:

Simplify : (25)32

 

A) 625 B) 15625
C) 125 D) √125
 
Answer & Explanation Answer: C) 125

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Q:

Find the unit place digit in the expression (159)144 + (114)123 - (110)510 + (213)25

 

A) 3 B) 4
C) 7 D) 8
 
Answer & Explanation Answer: D) 8

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Q:

Three unbiased coins are tossed.What is the probability of getting at least 2 heads?

A) 1/4 B) 1/2
C) 3/4 D) 1/3
 
Answer & Explanation Answer: B) 1/2

Explanation:

Here S= {TTT, TTH, THT, HTT, THH, HTH, HHT, HHH}.

Let E = event of getting at least two heads = {THH, HTH, HHT, HHH}.

P(E) = n(E) / n(S)

      = 4/8= 1/2

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Filed Under: Probability

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Q:

Solve : 2x + 4 = x - 3

 

A) 7 B) -7
C) -1 D) 1
 
Answer & Explanation Answer: B) -7

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Q:

What is the value of (sin30° + 1/3) ?

 

A) (2√2+√3)/2 B) (√6+1)/√3
C) 7/3   D) 5/6
 
Answer & Explanation Answer: D) 5/6

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Q:

Which of the following statement (s) is/are TRUE?

I. 4√3 > 3√4

II. 8√2 > 2√8

A) Only I B) Only II
C) Neither I nor I D) Both I and I
 
Answer & Explanation Answer: D) Both I and I

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Q:

The ratio of the cost price and selling price of a shirt is 32 : 37. What is the profit percentage?

 

A) 15.63 B)  13.51
C) 17.21 D) 14.44
 
Answer & Explanation Answer: A) 15.63

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Filed Under: Profit and Loss
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11 45809
Q:

Compute of 29292 x 9999 = ?

 

 

A) 222890708  B) 298290708 
C) 292809708  D) 292890708
 
Answer & Explanation Answer: D) 292890708

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