Mathematics · Work and Time
Prateek alone can complete assignment 'A' in 110 days, while Prateek and Hussain together can complete it in 40 days. An assignment 'B' involves 40% more work than assignment 'A'. Hussain is hired to work on assignment 'B' for 30 days. However, Hussain works at 'y%' of his original efficiency for the first 20 days and at '(y + 20)%' of his original efficiency for the remaining 10 days. After Hussain leaves, Prateek takes 119 days to complete the remaining work of assignment 'B'. Find the value of 'y'.
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