Winners from last weeks math problem, and the new problem of the week

Relay Races

A relay team consisting of four runners – Anne, Bryn, Carmen and Dahlia – completed a race in 72 minutes. Anne’s leg of the race took 1/5 of the total time; Bryn’s took 1/3 of the total time; and Carmen’s took 3/10 of the total time. How many minutes did Dahlia take to run her leg of the race?