A can do a certain job in 12 days . B is 60% more efficient than A. how many days does B alone take to do the same job?

A can do a certain job in 12 days. B is 60% more efficient than A. To do the same job B alone would take?

A can do a certain job in 12 days. B in 60% more efficient than A. What is the number of days it takes B to do the same piece of work ?

A can do a piece of work in 24 days. If B is 60% more efficient than A, then how many days does B require to do the same work?

Vivek can do a certain work in 14 days. Vishal is 75% more efficient than Vivek. How many days will Vishal alone take to do the same work?

A can do a piece of work in 6 days. B is 25% more efficient than A. How long would B alone take to finish this work?