Question

An English teacher must read and grade 25 essays. If the teacher takes 13 minutes to read and grade 5 essays, how much time will he need tograde all 25 essays?

Answer 1

We have

13 minutes ---> 5 essays

x minutes ----> 25 essays

Then:

`\begin{gathered} x*5=13*25 \\ 5x=325 \\ (5x)/(5)=(325)/(5) \\ x=65 \end{gathered}`

Answer: he need 65 minutes