Question 798470: If seven drums can empyt a tank in 28minutes,how many minutes will it takes 8 drums to empty the Same tank at the same rate?
Answer by josgarithmetic(39630)   (Show Source):
You can put this solution on YOUR website! You must mean, "rate per drum", when you say, "same rate".
We want to find the one drum tank-emptying rate.
If 7 drums need 28 minutes, then 1 drum needs  minutes, or 196 minutes.
How long in minutes if 8 drums are at work?
 tanks per minute, because rates are additive for each drum, and instead of only 1 drum at work, there are 8 of them, the same drums.
The time is 24.5 minutes.
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