Question : In a factory, Ajay and Vijay work on the same machine to cut diamonds but on an alternate-hour basis. Ajay works for the first hour and then Vijay works for the second hour and so on. Ajay can complete the work in 6 hours, while Vijay completes it in 16 hours if they work individually. In how much time can they complete the work if they are using the machine on an alternate basis?

Option 1: 8 hr 30 min

Option 2: 8 hr

Option 3: 9 hr

Option 4: 9 hr 30 min

Question : In a partnership firm two partners, Vijay and Praveen are working on an assignment. It will take 12 weeks for Vijay to complete the entire assignment alone, while Praveen will take 8 weeks to complete it alone. Due to work pressure, they decided to work on that assignment on an alternate weekly basis. In the first week, Praveen will work and in the second week, Vijay will work, and so on. In how many weeks the work will be completed if they work on an alternate week basis?

Option 1: 8

Option 2: 8.5

Option 3: 9.5

Option 4: 9

Question : It takes A and B, 3 and 6 hours, respectively, to complete a certain work. If they work on the alternate hour. How long will it take them to accomplish the task?

Option 1: 3 hours

Option 2: 4 hours

Option 3: 2 hours

Option 4: 4.5 hours

Question : Pratima and Diksha can complete typing work separately in 10 hours and 15 hours, respectively. After typing for 4 hours alone, Pratima leaves the work. In how many hours will Diksha complete the remaining typing work?

Option 1: 8

Option 2: 10

Option 3: 9

Option 4: 7

Question : Amit can complete a piece of work in 5 hours, Jeevan and Paul together can complete it in 4 hours, while Amit and Paul together can complete it in 3 hours. Approximately, how many hours will Jeevan alone take to complete the work (rounded off to the nearest integer)?

Option 1: 5 hours

Option 2: 6 hours

Option 3: 9 hours

Option 4: 8 hours

Question : Richa, Rita and Reena can independently complete a task in 8 hours, 12 hours and 24 hours, respectively. If they work together, how much time will they take to complete that task?

Option 1: 4 hours

Option 2: 5 hours

Option 3: 2 hours

Option 4: 3 hours