Nikhil is twice as efficient as Anil Nikhil takes 30 days to complete the work alone, in how many days can Anil finish 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 can do a work in 12 days. When he had worked for 3 days, B joined him. If they complete the work in 3 more days, in how many days can B alone finish the work?

Nikhil is thrice as efficient as Kanak and can finish an assignment in 6 days less than Kanak. How many days Kanak will take to finish the same assignment?

A is twice as good a workman as B and together they finish a piece of work in 7 days. In how many days can A alone finish the work?