Question 849600
Find the one-cook rate.  Seven cooks do the job in 2 hours, so only one cook needs 7 times longer; or {{{2*7=14}}} hours.


r*t=j for rate, time, job.
One cook, 1/14 jobs per hour.
Three cooks, 3/14 jobs per hour.
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Let t = time in hours to do this one job.
{{{highlight_green((3/14)t=1)}}}