SOLUTION: if it takes 3 men 11 days to dig a tench , the number of days it will take 5men to diag the same tench ,assuming all work is done at the same rate of speed?

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Question 1035697: if it takes 3 men 11 days to dig a tench , the number of days it will take 5men to diag the same tench ,assuming all work is done at the same rate of speed?
Answer by josgarithmetic(39625) About Me  (Show Source):
You can put this solution on YOUR website!
...,assuming all work is done at the same rate of speed?

Under that condition, the one trench still is dug in the same 11 days. Did you really mean something else?

Throw away that given assumption and you have a more useful exercise problem.
Let r be the rate of work for ONE MAN, and expect each man works at this rate r, in the unit TRENCH per DAYS, and let t be the number of unknown days asked. The first two parts of the description will then give the system of equations,

system%283r%2A11=1%2C5r%2At=1%29