Question

my watch loses 2 mints in 24hrs. if now 11am at my watch, how much time will it loss upto 7pm?

Answer 1

It will lose 0.6666666667 min from 11am to 7pm

Answer 2

if 24hr. loses 2mins.
then 1hr. loses 2/24
or
60 mins. loses 2/24×60
then from 11 am to 7pm the time gap is 9 hr.
Therefore time lossed in 1hr.=2/144×9×60
=15/2mins.<ans.>