Question

In a row of 21 boys,when rajendra was shifted by four places towards the right ,he becomes 12th from the left end .what was his earlier position from the right end of the row

Answer 1

after shifting 4 places to right ; rajendra is now 12 th from left

so before shifting rajendra was 8 th from left

so 13 boys were at his right

so he was 14 th from right before shifting