Peter and Pippin are peeling pails of potatoes. The two pails contain the same number of identical potatoes, and they begin peeling at the same time, working at constant rates. A half hour later Peter has just completed his pail, while Pippin is only two-thirds of the way through his pail. If Peter immediately joins Pippin, then how long will it take, in minutes, for the two of them to polish off peeling the rest of Pippin's potatoes?

Guest Oct 22, 2020

edited by
Guest
Oct 22, 2020

#1**+1 **

the job remaining is 1/3 pail of potatoes

Pippin will require 50% more time to go from 2/3 to 3/3 or 15 minutes

Peter by himself could do the 1/3 pail in 10 minutes

1/10 + 1/15 = 1/x solve for x = 6 minutes

ElectricPavlov Oct 22, 2020