7. Two taps can fill a tank in 5 hours and 10 hours respectively. A third tap at the bottom theempty it in 20 hours. If all of them are opened together, how long will it take to fill the tankB/ A, B and C together can complete a work in 15 days. Calone can do it in 120 days and A alone ca3. A can do a work in 6 days, B in 10 days and C in 15 days. A and B work for 3 days. How long wildo it in 30 days. In how many days will B alone do the work ?it take B and C to finish the work ? and AGPand Q can together finish a work in 30 days. They worked at it for 20 days and then Q left. mremaining work was done by P alone in 20 more days. In how many days can P alone do it?A and B can do a piece of work in 40 days; B and C in 30 days; C and A in 24 days.(i) How long will it take them to do the work together?(ii) In what time can each do it, working alone ?A and B together can complete a work in 14 days. B is twice as good a workman as A. In hommany days can B alone do it?If 4 boys or 6 girls can do a work in 40 days. How many days will 4 boys and 14 girls take to dothe same work?11A can complete of a work in 6 days and B can complete of the same work in 6 days. Find24(i) in how many days both working together can complete the work.(ii) the portion of the work done by each.(iii) the share of A if both started working together and after completing the work B gets 840.A can comnlete a nroiect in 20 days and B in 16 days. They worked together for 5 days and then​