Question

what percent of 1 week is 21 hours

Answer 1

In a week there are
24×7 hours
so
21/100 × 168
= 35.28 %

Answer 2

Hello mate

here is your solution

Number of total hours in a weak
=24 hours a day x 7 days a week
= 168 hours in a week 

So for percent of 21 hours out of one week

=21/168 x 100 =12.5% 

Therefore,
twenty one hours are about 12.5% of a week.

I hope helps you
#be brainly