idk what you are asking. But she is able to recover 2 chest per hour and would take however many chests divided by 2 for the time. EX: 300 chests. 300/2=150 hours.
First, let's figure out how many treasure chests Hanna can recover in 1 hour. If Hanna spends 6 times as many hours, she will recover 6 times as many treasure chests. If Hanna recovers 5 times as many treasure chests, she will need 5 times as many hours.