Question 1123972
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3
 workers can make 27 identical widgets in 
1
5
 hours . If all the workers work at the same rate, how long will it take 
7
 workers to make 1260 such widgets?
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Intended description may be this:
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Three workers can make 27 identical widgets in 15 hours . If all the workers work at the same rate, how long will it take 7 workers to make 1260 such widgets?
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r, the rate of work for 1 worker
x, unknown time for 7 workers to make 1260 widgets


{{{system(3r*15=27,7r*x=1260)}}}


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{{{(7r*x)/(3r*15)=1260/27}}}


{{{(7/(3*15))x=1260/27}}}


{{{x=(1260/27)((3*15)/7)}}}


{{{highlight(x=300)}}}