A works 3 times as fast as B. If B can complete a work in 60 days, then in how many days can A and B together complete the same work ?

A alone can complete a work in 12 days and B alone can complete the same work in 24 days. In how many days can A and B together complete the same work?

A works thrice as much as B. If A can complete this work in 12 days, then in how many days will both A and B complete this work ?

A alone can complete a work in 6 days and B alone can complete the same work in 8 days. In how many days both A and B together can complete the same work?

A can work twice as fast as B.A. and C together can work three times as fast as B. If A ,B and C complete a job in 30 days working together, in how may days can each of them complete the work?

A can work twice as fast as B.A. and C together can work three times as fast as B. If A ,B and C complete a job in 30 days working together, in how may days can each of them complete the work?

A is twice as fast as B and together they can complete a work in 20 days. In how many days can A alone complete the work?

A is twice as fast as B and together they can complete a work in 20 days. In how many days can A alone complete the work?

A alone can complete a piece of work in 6 days and B alone can complete the same piece of work in 12 days. In how many days can A and B together complete the same piece of work ?

U, V and W together can complete a work in 15 days. U alone can complete the work in 60 days. In how many days V and W together can complete the same work?