Question

Three workers arrive at work 15 minutes late, at a cost of $11/hour how will it cost company?

Answer 1

`1h=60min\\\\\begin{array}{ccc}60min&-&\$11\\\\15min&-&\$x\end{array}\\\\\\cross\ multiply:\\\\60x=11\cdot15\ \ \ /:60\\\\x=(11\cdot15)/(60)\\\\x=(11)/(4)\\\\x=2.75\ (\$)\leftarrow Answer`




`other\ method:\\\\\$11\ -\ 60min\ \ \ \ /:4\\\\\$11:4\ -\ 60min:4\\\\\$2.75\ -\ 15min`


`Answer:a\ cost\ (\$2.75)/(15min)`