Aman can do a piece of work in 15days and Rohan alone can do it in 10 days. Rhon works at it for 5 days and then leaves. In how many days Aman alone can finish the remaining work
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Given:
Aman can do the work in 15 days.
Rohan can do it in 10 days (LCM of 15&10=30)
Total work :30 units.
Efficiency of Aman= 2
Efficiency of Rohan = 3
To find : how many days Aman alone can finish the remaining work?
solution:
Rohan works for 5 days hence completes
5×3=15 units.
Hence work remaining:
30-15=15 units
Aman will require 15/2 or 7-1/2 days to complete the remaining work.
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