Question 995044
Tom finishes 1/10 of the task in 1 hour.
Jerry takes 1/x of the task in 1 hour, so he can finish the task in x hours.


1/10 + 1/x = 1/6
6/60 + 1/x = 10/60
1/x = 1/15


x = 15, so Jerry can finish the task himself in 15 days.