A is 30% more efficient than B. How much time will they, working together, take to complete a job which A alone could ha…

A and B together complete a piece of work in T days. If A alone completes the work in T + 3 days and B alone completes t…

Subhash can copy 50 pages in 10 hours; Subhash and Prakash together can copy 300 pages in 40 hours. In how much time can…

A can do as much work as B and C together can do. A and B can together do a piece of work in 9 hours 36 minutes and C ca…

A conveyor belt delivers baggage at the rate of 3 tons in 5 minutes and second conveyor belt delivers baggage at the rat…

Janardan completes $$\frac{2}{3}$$ of his work in 10 days. Time he will take to complete of the same $$\frac{3}{5}$$ wo…

639 persons can repair a road in 12 days working 5 hours a day. In how many days will 30 persons working 6 hours a day c…

A and B can do a piece of work in 12 days, B and C in 8 days and C and A in 6 days. How long would B take to do the same…