If A and B together can complete a job in 24 days, and A alone can complete it in 30 days, how long will B alone take to complete the job?

If A can complete a job in 18 days and B in 24 days, how long will it take for them to complete the job if they work together?

A can do a job in 9 days, B in 12 days, and C in 18 days. How many days will it take for all three working together to complete the job?

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?

A can complete a task in 8 hours, B can complete it in 12 hours, and C can do it in 24 hours. How long will it take for all three to complete the task working together?

A can do a piece of work in 15 days and B in 25 days. How long will it take for A and B to complete the work together?

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?

If A can complete a job in 8 days and B in 12 days, how long will it take for A and B to finish the job if A works alone for 3 days and then B joins him?

If A can complete a job in 25 days, and B can complete the same job in 35 days, how long will it take them to complete the job if they work 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?