Question : A and B can do a piece of work in nine days. If A does three times the work of B in a given time, the time A alone will take to finish the work is:

Option 1: 4 days

Option 2: 6 days

Option 3: 8 days

Option 4: 12 days

Question : A can do a piece of work in 20 days and B in 15 days. With the help of C, they finish the work in 5 days. C can alone do the work in:

Option 1: 5 days

Option 2: 6 days

Option 3: 10 days

Option 4: 12 days

Question : M is three times as good a worker as N and together they finish a piece of work in 30 days. In how many days will M alone finish the work?

Option 1: 50

Option 2: 40

Option 3: 60

Option 4: 45

Question : A and B together can do a piece of work in 6 days and A alone can do it in 9 days. The number of days B will take to do it alone is:

Option 1: 18 days

Option 2: 24 days

Option 3: 9 days

Option 4: 12 days

Question : P and Q together can complete a piece of work in 6 days. If P can alone complete the work in 18 days, the number of days required for Q to finish the work is:

Option 1: 10 days

Option 2: 8 days

Option 3: 11 days

Option 4: 9 days

Question : A and B together can do a piece of work in 12 days, while A alone can do the same work in 30 days. B alone can do it in:

Option 1: 18 days

Option 2: 20 days

Option 3: 15 days

Option 4: 22 days