Question
It takes $m$ hours to grade a set of papers.(a) What is the grader's rate (in job per hour)?(b) How much of the job will the grader do in $2 \mathrm{hr}$ ?
Step 1
In this case, the total job is grading a set of papers and the total time taken is $m$ hours. Therefore, the grader's rate (in job per hour) is $\frac{1}{m}$. Show more…
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