Question

Mike started reading a book at 3:35 P.M.

and finished before dinner at 5:30 P.M.
How many minutes did he work?​

Answer 1

115 minutes

Explanation:

One hour is 60 minutes.

From 5:30 p.m. subtract 3:35 pm, which yields two hours plus five minutes.

Thus, Mike worked (60 + 55) minutes, or 115 minutes.