Items in an Average

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The average (arithmetic mean) price of three items sold by a store to a particular customer, before discounts, was $90. If a discount of 20% was applied at the point of purchase to all items of at least $100, what was the total discount saved by the customer?

(1) The pre-discount price of the most expensive item that the customer purchased from the store was $180.

(2) The pre-discount price of the least expensive item that the customer purchased from the store was $10.