Three spraying machines working together can finish painting a house in 60 minutes. How long will it take for 5 machines of the same capacity to do the same job?

X and Y together can finish a job in 6 days. X can alone do the same job in 12 days. How long will Y alone take to do the same job ?

A can finish a piece of work in 12 hours while B can finish it in 15 hours. How long will both take to finish it, working together?

2 men each working 5 hour per day can finish a job in 12 days. How long will 4 men each working 2 hours per day take to finish the same job?

A and B working together can do 30% of the work in 6 days. B alone can do the same work in 25 days. How long will A alone take to complete the same work?

A and B working together can finish a job in x days. If A works alone and completes the job, he will take (x + 5) days. If B works alone and completes the same job, he will take (x + 45) days. What is x?

Anil can do a piece of work in 5 days and ankur in 4 days. How long will they take to do the same work, if they work together?

Anil can do a piece of work in 5 days and ankur in 4 days. How long will they take to do the same work, if they work together?

If 3 men or 6 boys can finish a work in 20 days, how long will 4 men and 12 boys take to finish the same work ?

If 40 men can finish a piece of work in 60 days. In how many days will 75 , men finish the same work ?