Question

Applications
Working Together
Trent can deliver his newspaper in 20 min. It takes lois 60min to do the same route. How long will it take them to deliver the newspaper if they work together?

Answer 1

So, trent can do 1 route in 20 min, so you can write this as 1/20 (1 route per 20 minutes). Similarly, lois's route speed can be written 1/60.

If x is minutes, write this as (1/20)x + (1/60)x = 1.

Solve and get 15 minutes

Answer 2

thanks!