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Permutation under Restriction

In a row of t...

Question

In a row of ten boys, when Rohit was shifted by two places towards the left, he became seventh from the left end. What was his earlier position from the right end of the row ?

A

First

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B

Second

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C

Fourth

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D

Sixth

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Solution

The correct option is B Second

Now, he is $7^{t h}$ from left. Earlier he was $7 + 2 = 9^{t h}$ from left or $2^{n d}$ from right as shown in diagram.
Hence, option 'B' is correct.

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