Question : P and Q can do a project in 12 and 12 days respectively. In how many days can they complete 50% of the project if they work together?

Option 1: 6

Option 2: 3

Option 3: 18

Option 4: 1.5

Question : A can complete a piece of work in 9 days. B and C can complete the same work in 12 days and 18 days respectively. If A, B, and C work together, then in how many days will they complete the work?

Option 1: 10 days

Option 2: 8 days

Option 3: 4 days

Option 4: 15 days

Question : P, Q, and R can complete a work alone in 12,15, and 20 days respectively. They started the work together. P left the work 8 days before the work was completed and Q left the work 5 days after P had left. R completed the remaining work alone. How many days will be required to complete the whole work?

Option 1: $\frac{32}{3}$ days

Option 2: $10$ days

Option 3: $\frac{28}{3}$ days

Option 4: $\frac{25}{3}$ days

Question : A and B together can complete a work in 20 days. B and C together can complete the same work in 15 days. If A, B, and C all work together, then the same work gets completed in 10 days. How many days will A and C together take to complete the same work?

Option 1: 8 days

Option 2: 10 days

Option 3: 15 days

Option 4: 12 days

Question : 40 men can complete a work in 18 days. Eight days after they started working together, 10 more men joined them. How many days will it now take to complete the remaining work?

Option 1: 6

Option 2: 8

Option 3: 10

Option 4: 12

Question : X, Y, and Z can complete a piece of work in 20, 12, and 28 days respectively. If all work together, the approximate number of days to complete the work will be:

Option 1: 6

Option 2: 7

Option 3: 4

Option 4: 5