SOLUTION: A new type of pump can train a certain pool in 4 hours. An older pump can drain a pool in 6 hours. How long will it take both pumps working together to drain the pool? Do not do an
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Question 1140868: A new type of pump can train a certain pool in 4 hours. An older pump can drain a pool in 6 hours. How long will it take both pumps working together to drain the pool? Do not do any rounding. Answer by josgarithmetic(39617) (Show Source):
You can put this solution on YOUR website! ----------------------------------------------------------
,... pump can trainDRAIN a certain pool in 4 hours....
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Solve!
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New pump drains the pool in 4 hours.
Old pump drains the pool in 6 hours.
The draining rate unit is in POOLS PER HOUR.
The sum of the two individual rates is the rate for the two combined pumps working together.
New pump drains pool at .
Old pump drains pool at .
The TIME for the two working together, you can calculate, and not yet knowing it, you may call this time, x.
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