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 Quantitative Aptitude - Arithmetic Ability Questions

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Q:

The total surface area of a hemisphere is 1039.5 cm2. Find its diameter (in cm).

 

A) 21 B) 10.5
C) 42 D) 31.5
 
Answer & Explanation Answer: A) 21

Explanation:
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Q:

0.06% of 250% of 1600 is _________.

A) 24 B) 0.24
C) 0.024 D) 2.4
 
Answer & Explanation Answer: D) 2.4

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Q:

A text book of mathematics cost 2 Rs/- more than a text book of literature. If 5 literature books cost 38 Rs/- more than 3 mathematics books, what is the cost of each literature book?

A) 44 B) 22
C) 24 D) 11
 
Answer & Explanation Answer: B) 22

Explanation:

Let each literature text book cost be Rs. X

Then, cost of mathematics text book = Rs. (X + 2)

ATQ,

5X = 38 + 3(X + 2)

5X = 38 + 3X + 6

2X = 44

X = 22.

 

Therefore, cost of each literature text book = Rs. X = Rs. 22.

And that of masthematics = X + 2 = Rs. 24.

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Q:

Find the odd one out.

 

 

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

Explanation:
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Q:

In the below series how many numbers are completely divisible by the number on right?

 

563248889266588343

 

A) 5 B) 4
C) 3 D) 6
 
Answer & Explanation Answer: A) 5

Explanation:
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Q:

Select the option that does not belong in the following figure series.

 

 

A) A B) B
C) C D) D
 
Answer & Explanation Answer: A) A

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Q:

A man's annual income has increased by Rs 1.2 lakhs but the tax on income that he has to pay has reduced from 12% to 10%. He now pays the same amount of tax as before. What is his increased income (in Rs lakhs)?

A) 8.4 B) 7.2
C) 9.6 D)  6
 
Answer & Explanation Answer: B) 7.2

Explanation:
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Q:

If you write down all the numbers from 1 to 100, then how many times do you write 4 ?

A) 11 B) 20
C) 17 D) 14
 
Answer & Explanation Answer: B) 20

Explanation:

4, 14, 24, 34, 44, 54, 64, 74, 84, 94 => has 11 number of (4's)
40, 41, 42, 43, 45, 46, 47, 48, 49 => has 9 number of (4's)
So, totally (11 + 9 = 20) number of 4's in 1 to 100.

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