A company payroll is prepared by two computers in 13 min. Working alone, the faster of the two computers can prepare the payroll in 20 min. How much time does the slower computer alone require to prepare the payroll?

Axel follows these steps to divide 40 by 9: start with 40. 1. divide by 9 and write down the remainder. 2. write a zero after the remainder. 3. repeat steps 1 and 2 until you have a remainder of zero. examine his work, and then complete the statements below.