Question 819307
It takes James 2 hours longer to do a certain job than it take Philip. They worked together for 3 hours; then Philip left and James finished the job for 1 hour. How long would it take each of them to do the job alone?
j=p+2,
3/j+3/p+1/j=1
4/j+3/p=1
4/(p+2)+3/p=1

j = 8,   p = 6