Left on together, the cold and hot water faucets of a certain bathtub take
8
minutes to fill the tub. If it takes the cold water faucet
18
minutes to fill the tub by itself, how long will it take the hot water faucet to fill the tub on its own?

Question

Left on together, the cold and hot water faucets of a certain bathtub take 
8
 minutes to fill the tub. If it takes the cold water faucet 
18
 minutes to fill the tub by itself, how long will it take the hot water faucet to fill the tub on its own?

rob1525 · Answer

The flow of water cannot exceed 100% soo..8 is max rate of flow and 18 is the rate of flow for just the cold water. I calculated that 8/18 is .4444 which leaves .66666 or 2/3 left out of 100% soo...18*2/3 is 12..i think.