# Copiers

The new copier copying a folder of papers 5 min. faster than the old. The operator used new, but out of toner and exchange took 5 min. In that time copied on the old. The whole work has been done for 9 min. How long would the work done only by old copier?

**Your answer:**Tips to related online calculators

Looking for help with calculating roots of a quadratic equation?

Do you have a linear equation or system of equations and looking for its solution? Or do you have a quadratic equation?

Do you want to convert velocity (speed) units?

Do you want to convert time units like minutes to seconds?

Do you have a linear equation or system of equations and looking for its solution? Or do you have a quadratic equation?

Do you want to convert velocity (speed) units?

Do you want to convert time units like minutes to seconds?