A can do a piece of work in 10 days B in 12 days and C in 15 days all begin together but A leaves the work after 2 days and B leaves 3 days before the work is finished how long did the work last
DEFENDER1
Asked:
December 2022
two pipes P and Q would full an empty cistern in 24 minutes and 32 minutes respectively both the pipes being opened together find when the first pipe would must be turned off so that the empty system maybe just fulled in 16 minutes