f A and B can complete a piece of work in 8 and 12 days respectively, how long will it take for B to complete the same work if A works twice as fast as B?

If A can complete a job in 8 days and B can complete the same job in 12 days, how long will it take for both A and B to complete the job together?

A and B can finish a job in 16 days and 24 days respectively. If they start the work together and A leaves after 8 days, how many days will B take to complete the remaining work?

A and B can complete a work in 10 days and 15 days respectively. If they work together for 5 days, what fraction of the work is left?

If A and B together can complete a work in 10 days, and B alone can complete it in 15 days, how many days will A alone take to complete the work?

If A can complete a job in 4 hours and B can do the same job in 6 hours, how long will it take for both A and B to complete the job together?

A, B, and C can finish a work in 10, 15, and 30 days respectively. If they work together, how long will they take to complete the work?

If A completes a task in 16 days and B completes it in 24 days, how long will it take for A and B to complete the task if they work together for 5 days?

If A completes a job in 20 days and B completes the same job in 30 days, how many days will it take for A and B to complete the job together?

If A can complete a task in 10 days and B can do it in 15 days, how many days will it take for both A and B to complete the task if they work together?