Question 1111744
RT=W, rate, time, work, R depends on number of workers



x, time for the five workers of the question;
{{{system(8r*5=6,5r*x=9)}}}

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{{{(5r*x)/(8r*5)=9/6}}}


{{{x/8=9/6=3/2}}}


{{{highlight(x=12)}}}{{{hours}}}