  # P, Q, R can do a work in 12, 8 and 6 days respectively. Q and R start the work and leave after 2 days...

+1 vote
163 views

P can do a work in 12 days. Q can do the same work in 8 days and R can do the same in 6 days. Q and R start the work and leave after 2 days. P finishes the remaining work in X days. What is the value of 1.1X? posted Jun 12, 2017

+1 vote

5 days
let work be W
Speeds P=W/12, Q=W/8 and R=W/6 Since Q and R work for two days work accomplished = 2*(W/8+W/6). Work remaining =5W/12.
Time required by P =(5W/12)/W/12=5 days answer Jun 13, 2017

Similar Puzzles

P can do a work in 20 days. Q can do the same work in 12 days and R can do the same in 16 days. Q and R start the work and leave after 6 days. P finishes the remaining work in X days. What is the value of X?

P can do a work in 19 days. Q can do the same work in 9.5 days and R can do the same in 28.5 days. Q and R start the work and leave after 3 days. P finishes the remaining work in X days. What is the value of X?