A washing machine requires 27.5 minutes
to wash one load of laundry. A clothes
dryer requires 60% more time than the
washing machine to dry one load of
laundry. What is the total amount of time
it takes to wash and dry one load of
laundry?
The answer is 1hr11min30sec or 71.5 mn _60% more than 27.5 is 44 using %increase formula : %increase=(final-initial)/initial _in this case we have increased % and initial, hence we can find final value. _finally : 44+27.5=71.5mn