SOLUTION: A hot water tap can fill a bath in 5 minutes , while a cold water bath can fill the same bath in 3 minutes. the drain pipe can empty the full bath 3 and three quarters minutes. the

Algebra ->  Rate-of-work-word-problems -> SOLUTION: A hot water tap can fill a bath in 5 minutes , while a cold water bath can fill the same bath in 3 minutes. the drain pipe can empty the full bath 3 and three quarters minutes. the      Log On


   

Question 1149842: A hot water tap can fill a bath in 5 minutes , while a cold water bath can fill the same bath in 3 minutes. the drain pipe can empty the full bath 3 and three quarters minutes. the two taps and the drain pipe are fully open for one and a half minutes after which the drain pipe is closed. how much longer will it take to feel the bath?
Answer by josgarithmetic(39618) About Me  (Show Source):
You can put this solution on YOUR website!
hot, 1%2F5
cold, 1%2F3
drain, -4%2F15

hot&cold combined, 8%2F15

x, how long after closing the drain pipe to fill bath
%288%2F15-4%2F15%29%281%261%2F2%29%2B%288%2F15%29x=1
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