Question

Sandeep started making oatmeal cookies at 9:48 A.M. It took him 1 hour and 13 minutes to make the dough and 2 hours and 20 minutes to bake all of the cookies. What time was it when Sandeep finished making cookies?

Answer 1

Adding the time Sandeep took to make the dough (1 hour and 13 minutes), we get 9:48 A.M. + 1 hour + 13 minutes = 10:61 A.M.
Adding the time Sandeep took to bake the cookies (2 hours and 20 minutes), we get 10:61 A.M. + 2 hours + 20 minutes = 1:21 P.M.
So, Sandeep finished making cookies at 1:21 P.M.