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Quantitative Aptitude

Three Sets Venn Diagram

In a row of b...

Question

In a row of boys, Rohit is 12th from the left and Ajit is 15th from the right. When they interchange their positions, Ajit becomes 20th from the right. How many boys are there in the row?

A

30

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B

31

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C

28

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D

27

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E

None of the above

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Solution

The correct option is B 31

Total number of boys in the row
= 12 + 20 - 1 = 31

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