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22 August, 21:14

Question 6 Left on together, the cold and hot water faucets of a certain bathtub take 6 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?

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  1. 22 August, 21:30
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    hot water faucet to fill the tub is 9 minutes

    Explanation:

    given data

    time = 6 minutes

    cold water = 18 minutes

    to find out

    how long will it take the hot water faucet to fill the tub

    solution

    we know rate of both water faucets open together so now

    let us consider c is the rate for hot faucet water per min

    so equation will be

    1/18 + 1/C = 1/6

    so solve the value of c

    1/c = 1/18 - 1/6

    1/c = 1/9

    so c = 9

    hot water faucet to fill the tub is 9 minutes
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