Question

 Rohit can complete the work in 16 days. He started the work and after 4 days, Ram joined him. They completed the job in 4 more days. What is the number of days in which Ram alone can complete it?
1. 12 days
2. 8 days
3. 14 days
4. 16 days

Answer 1

Correct Answer - Option 2 : 8 days

Given:

Rohit can complete the work in 16 days

Calculation:

⇒ Rohit can complete the work in one day = 1/16

⇒ Rohit work for 8 days = 8 × (1/16) = 1/2

⇒ Remaining work (1/2) will be completed by Ram in 4 days 

⇒ Ram alone can complete the work in = 4 × 2 = 8 days

∴ The required result will be 8 days.