Ram and Shawan working together can complete a job in 5 hours, where as Ram alone can complete the same job in 6 hours. In how many hours can Shawan alone complete the job?
Answer & explanation
Correct answer: option 1
Ram + Shawan = 5 hrs,
Ram = 6 hrs,
⇒ Therefore Shawan in a day = 1 (Efficiency)
⇒ Time required by Shawan to complete the total work alone = \(\frac{30}{1}\) = 30 hrs. ..(\(\frac{Work}{Efficiency}\) = Time)