Question: A commercial plane has 270 seats divided into three classes: first class, business, and coach. The first-class seats are a third of the business-class seats.

A commercial plane has 270 seats divided into three classes: first class, business, and coach. The first-class seats are a third of the business-class seats. There are 250 more coach seats than first-class seats. Find the number of seats of each class in the airplane.

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