Milk ' n ' Coffee

Algebra Level pending

One morning, each member of Rajat's family drank an 8-ounce mixture of coff ee and milk.The amounts of co ffee and milk varied from cup to cup, but were never zero. Rajat drank 1/7-th of the total amount of milk and 2/17-th of the total amount of co ffee. How many people are there in Rajat's family?

Source : Pre - RMO 2014

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