Traditional Culture Encyclopedia - Tourist attractions - In order to attract tourists, tourist attractions
In order to attract tourists, tourist attractions
Let's buy x tickets.
Then it is [120-2(X-30)]*X=4000, and the solution is X=40 or X=50.
And because when X=50, the fare is 120-(50-30) * 2 = 80 < 90, which contradicts the main question.
So X=40, which means you bought 40 tickets.
Ticket price:120-(40-30) * 2 =100.
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