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Foodmart customers regularly buy at least one of the following products: milk, chicken, or apples. 60% of shoppers buy milk, 50% buy chicken, and 35% buy apples. If 10% of the customers buy all 3 products, what percentage of Foodmart customers purchase exactly 2 of the products listed above?
5% 10% 15% 25% 30%
I don't agree with the OA. Shouldn't the formula be M+C+A - (M&C + M&A + C&A) + M&C&A = 100%?