Question : A and B can complete a task together in 18 hours. After 6 hours, A leaves. B takes 36 hours to finish the rest of the task. How many hours would it have taken A to do the task if he worked alone?

Option 1: 54

Option 2: 45

Option 3: 21

Option 4: 27

Question : If A had worked alone, it would have taken him 63 hours to complete the task. What is B's share if A and B work together on a task, finishing it in 36 hours, and they get paid Rs. 5,950 for it?

Option 1: Rs. 3,400

Option 2: Rs. 3,600

Option 3: Rs. 2,550

Option 4: Rs. 2,750

Question : B would have taken 10 hours more than what A would have taken to complete a task if each of them worked alone. Working together, they can complete the task in 12 hours. How many hours would B take to do 50% of the task?

Option 1: 30

Option 2: 15

Option 3: 20

Option 4: 10

Question : A and B can do a certain work in 6 hours, and A, B, and C together take 4 hours to do the same. How long will it take for C alone to accomplish the task?

Option 1: 12 hours

Option 2: 4 hours

Option 3: 2 hours

Option 4: 6 hours

Question : Two workers A and B are engaged to do a piece of work. Working alone A would take 8 hours more to complete the work than when working together. If B worked alone, would take $4\frac{1}{2}$ hours more than when working together. The time required to finish the work together is:

Option 1: 5 hours

Option 2: 4 hours

Option 3: 8 hours

Option 4: 6 hours