Question

Jim has the job of sorting the mail at his company. Today, it took Jim 73% of the time that it took him yesterday to sort the company's mail. If it took him 2 hours and 20 minutes yesterday, how much time did it take him today? Round your answer to the nearest minute.

Answer 1

Yesterday's time:  t = 2 hr 20 min

Today's time:  0.73(2 hr 20 min) = 0.73 (2.333 hr) = 1.703 hr

This can be expressed in hours and minutes:
                                                              
                                                            60 min
1 hr + 0.703 hr  =  1 hr + 0.703 hr * --------------
                                                           1 hr

                            = 1 hr + 42.18 min

Rounded off to the nearest minute, we get 1 hr 42 min (answer)