SOLUTION: If the time (T) it takes to plant rice in an acre varies inversely as the number of farm workers (W). If 18 workers can plant rice in a certain number of acres in 3 days, how long

Question 1005409: If the time (T) it takes to plant rice in an acre varies inversely as the number of farm workers (W). If 18 workers can plant rice in a certain number of acres in 3 days, how long will it take 12 workers to plant rice in the same number of acres?
Answer by josgarithmetic(39616) (Show Source): You can put this solution on YOUR website!
This will use lower case instead of upper case.
r, for rate of 1 worker.
nr, rate for n workers.
1 job is "plant rice in the certain number of acres".

Let t be the unknown number of days for the question.

Solve the system for t.
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