Question

A swimming pool can be filled by water hose a in 12 hours and hose b can fill the pool in 8 hours, how long will the pool be filled if the two hose we're used to fill the pool?​

Answer 1

5 hours

Explanation:

add 8+12 which is twenty divide that by 4 which is the difference in time between the two hoses and you get 5 hours

Answer 2

5 hours because I just saw what the other person wrote and I find it to be very accurate