Question

You are asked to prepare dinner for 6:00 pm. if it takes 12 minutes to prepare dinner 48 minutes to cook it,and 5 minutes to let it cool what time should you start making dinner?

Answer 1

$\begin{gathered} \Rightarrow12+48+5=65\text{ minute} \\ so,\text{ he must start at 4:55 p:m} \end{gathered}$