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?
2.5 days
If W is work then W=20P=12Q=16R
Daily speed is: P=W/20 Q=W/12 R=W/16
W=6*(W/12+W/16)+X*W/20 X=2.5
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?
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?
P is able to do a piece of work in 15 days and Q can do the same work in 10 days. If they can work together for 2 days, what is the fraction of work left?
X and Y can do a piece of work in 20 days and 12 days respectively. X started the work alone and then after 4 days Y joined him till the completion of the work. How long did the work last?
Nine men can finish a work in 20 days whereas 12 women can finish the same work in 18 days. If 6 men and 9 women started working together. After 8 days 3 women left and 2 new men joined the work, the group continued working together till the end of the work. In how many days they would be able to do the remaining work?
