Mr. Peculis and four friends are on a hiking trip. No two of his friends are the same age. The friends walk along a hiking trail in a single-file line. As they walk, each person counts the number of people both in front of them and behind them who are older than they are. This information is shown in the table below.

Mr Peculis and four friends are on a hiking trip No two of his friends are the same age The friends walk along a hiking trail in a singlefile line As they walk class=