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Ram and Shyam work on a job together for four days and complete 60% of it. Ram takes leave then and Shyam works for eight more days to complete the job. How long would Ram take to complete the entire job alone ?
- A.6 days
- B.8 days
- C.10 days
- D.11 days
▶ Answer & Explanation
Correct answer: C. 10 days
If Ram and Shyam complete 60% of the job in 4 days, they complete 15% per day. The remaining 40% is completed by Shyam alone in 8 days, meaning Shyam completes 5% of the job per day. Since together they complete 15% per day, Ram must complete 10% of the job per day. Therefore, Ram would take 10 days to complete the entire job alone.
Source: UPSC csat 2016