Time And Work Mock Tests

A and B can complete a work in 12 days and 15 days respectively. If they work on alternate days starting with A, how many days will they take to complete the work?

A can do a piece of work in 10 days and B can do the same work in 15 days. They work together for 3 days, after which A leaves. How many more days will B take to complete the remaining work?

A and B can complete a piece of work in 12 days and 15 days respectively. If they work together, how many days will they take to complete the work?

A and B together can complete a piece of work in 8 days. If A alone can complete it in 12 days, B alone can complete it in:

A is twice as fast as B. If B alone can complete a piece of work in 18 days, how many days will A and B together take to complete the same work?

If 3 men or 9 women can complete a task in 24 days, how many days will 6 men and 9 women take?

If 15 workers can complete a job in 24 days, how many days will 20 workers take to complete the same job?

A can do a work in 20 days, B in 30 days, and C in 60 days. If A works on alternate days and B and C work every day, how much time will be taken to complete the work?