Traditional Culture Encyclopedia - Tourist attractions - In order to attract citizens to organize group tours to Tianshui Bay Scenic Area, Spring and Autumn Travel Agency has introduced the following charging standards: The following charging standards
In order to attract citizens to organize group tours to Tianshui Bay Scenic Area, Spring and Autumn Travel Agency has introduced the following charging standards: The following charging standards
Suppose X people go, obviously X>25, (because if It should be 1000-20(X-25)=1500-20X yuan,
So from the question
(1500-20X)*X=27000,
< p>So -20X^2+1500X-27000=0,So 2X^2-150X+2700=0,
So (X-30)(2X-90) =0,
So X=30 or X=45,
When X=30, 1500-20X=900>700 meets the meaning of the question;
When X = 45, 1500-20
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