Question

30 minutes 18 seconds of 1 hour. find percentage.

Answer 1

total seconds are 1818 .
seconds in one hour is 3600 so percentage is 1818/3600×100=50.5

Answer 2

total seconds in 60 min-60*60=3600
total seconds in 30 minutes 60*30 comes 1800
total seconds comes 1800+18=1818
%1818/3600*100=50.50