Q1. P can do a piece of work in 20 days Q is 25 percent more efficient than P In how many days half the work is completed when both are working simultaneously

Q2. M can do a piece of work in 10 days working 10 hours a day The work is started by M and on the second day one man whose capacity to do the work is twice that of M joined On the third day another man whose capacity is thrice that of M joined and the process continues till the work is completed In how many days will the work be completed if everyone works for five hours a day

Q3. If 10 men or 20 women or 40 children can do a piece of work in 7 months then 5 men 5 women 5 children together can do half of work in

Q4. Hari and Vijay can together finish a work in 30 days They worked together for 20 days and then Vijay left After another 20 days hari finished the remaining work In how many days hari alone can finish the work

Q5. A wall construction can be done by 6 men and 5 women in 6 days or 3 men and 4 women in 10 days It can be done by 9 men and 15 women in