Question

Mary finished 30% of her job in 6 hours. how much more time does she need to finish her job?

Answer 1

Answer:

sorry I am not understanding

Answer 2

We know that,

The percentage of the job finished by Mary in 6 hours=30%.

So, now we gotta find out how much work she can do within 1 hour.

That is,

=30/6

=5%

There fore, she can complete 5% of work in 1 hour. So now, to calculate here total time.

It is now very clear that it takes her 2 hours to do 10% of work(Since 2 × 5% × 1h=10).

Calculating for 100%, we have the answer as that it would take her 20hrs to complete the work.

Hope it helps you!