Problema Solution
A watch lost 1 minute 18 seconds in 39 days.how many seconds did it lose per day?
Answer provided by our tutors
since 1 min = 60 sec
1 min 18 sec = 1*60 + 18 = 78 sec
we will assume that there was an equal amount of time lost each day.
since the total number of days is 39, we divide 78 by 39 and find:
78/39 = 2 sec
the watch lost 2 seconds per day.