RRB NTPC · Question 100
The positions of Deepti and Mohan in a row are 14^th from the left and 9^th from the right respectively. If they interchange their places, then Mohan will be 21^st from the right, find the position of Deepti from the left now and the total number of persons in the row.
Show answer & explanation
Answer: (C) 26, 34
Explanation
After swapping, Mohan is in Deepti's old place, which is 21st from the right; it was 14th from the left, so the row has 14 + 21 − 1 = 34 people. Deepti is now in Mohan's old place, 9th from the right, i.e. 34 − 9 + 1 = 26th from the left.