Correct Answer - Option 2 : 8
th
In a row of 16 boys, when Prakash was shifted by two places towards the left, he became 7 from the left end.
The earlier position of Prakash from the right end of the row = 16 - (7 + 2) + 1
= 16 - 9 + 1
= 8
Hence, ‘8th’ is the correct answer.