Question

if 4/5 of oil tank is filled in 1 hour, how much time will be required to fill the rest of it​

Answer 1

it takes 15 minutes to fill the rest of it.

Answer 2

Answer:

15 minutes

Step-by-step explanation:

There is 1/5 left

60minutes is 4/5

There is 1/5 left

60min - 4/5

Therefore:

1/5 is 15 minutes

You end up with 15 minutes