Let us say that the task of cleaning the house is equal to
1 job. Therefore the rates are:
rate of Owl = 1 job / 25 minutes
rate of eeyore = 1 job / 40 minutes
So working together, the time is:
(1 / 25) + (1 / 40) = 1 / t
0.065 = 1 / t
t = 15.38 minutes
So it takes about 15.38 minutes working together.
