Question
If Paul and Perry paint a house, they take 30 days to finish painting. If Jeremy and Paul paint the same house, they take 5 days to finish painting. If Perry and John paint the same house, they take 10 days to finish painting. How many days do Jeremy and John take to paint the house if they work together?
4 m

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If Paul and Perry paint a house, they take 30 days to finish painting. If Jeremy and Paul paint the same house, they take 5 days to finish painting. If Perry and John paint the same house, they take 10 days to finish painting. How many days do Jeremy and John take to paint the house if they work together?