A certain number of persons are standing in a row facing south (not necessarily in the same order). A is 9th person from left end. Five people stand between A and Z. Z is second person from one of the end. How many persons are standing in the row?
Show answer & explanation
Correct answer: A
Explanation
Distance between A and Z
There are 5 people in the middle → difference in positions
5 + 1 = 6
A = 9th from the left
9 + 6 = 15 or
9 − 6 = 3
Z is second from either end
Second from the end → 2 or (total − 1)
Now 3 is not possible.
So Z = 15
If Z is second from the right:
Total − 1 = 15
= 16