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Ram alone can complete a job in 30 days. Shyam alone can complete the same job in 20 days. Ram works for 18 days and then the remaining job is completed by Shyam. How many days will it take Shyam to complete the remaining job alone?

Ram alone can complete a job in 30 days. Shyam alone can complete the same job in 20 days. Ram works for 18 days and then the remaining job is completed by Shyam. How many days will it take Shyam to complete the remaining job alone? Correct Answer 8 days

Ram’s 1 day work = 1/30

Ram’s 18 days work = 18/30 = 3/5 days,       

Remaining work = 1 – 3/5 = 2/5

Shyam’s 1 day work = 1/20 days,      

Shyam’s 2/5 day work = 1/20 × 5/2 = 1/8

Hence, Shyam will complete the remaining job alone in 8 days.

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