Question : 15 men can do a work in 15 days working 8 hours a day. N men can do twice the work in 20 days working 10 hours a day. What is the value of N?

Option 1: 14

Option 2: 12

Option 3: 16

Option 4: 18

Question : A work can be completed by 20 men in 50 days. 30 more men join them after 10 days of work. How many days will be saved in the completion of the work?

Option 1: 18 days

Option 2: 20 days

Option 3: 24 days

Option 4: 28 days

Question : 12 men can complete a work in 6 days working 4 hours per day. If 4 men work 8 hours per day, then in how many days the same work will be completed?

Option 1: 8 days

Option 2: 6 days

Option 3: 9 days

Option 4: 10 days

Question : 18 men can do a piece of work in 20 days. After working for 8 days, they get a notice to complete the work 4 days earlier than originally scheduled. How many more men will be required to be hired to complete the work as per the new schedule?

Option 1: 9

Option 2: 12

Option 3: 8

Option 4: 15

Question : A alone can do a piece of work in 30 days. He worked at it for 5 days and then B alone finished the remaining work in 10 days. In how many days B alone can finish the entire work?

Option 1: 12 days

Option 2: 15 days

Option 3: 10 days

Option 4: 18 days