Problema Solution
Left on together, the cold and hot water faucets of a certain bathtub take 5 minutes to fill the tub. If it takes the cold water faucet 15 minutes to fill the tub by itself, how long will it take the hot water faucet to fill the tub on its own?
Do not do any rounding.
Answer provided by our tutors
1/x = 1/5 - 1/15
1/x = 2/15
x = 15/2 = 7.5
so the hot tub will take 7.5 hours to fill