The admission price per child at an amusement park is 5/9 of the admission price per adult.
问题描述：
The admission price per child at an amusement park is 5/9 of the admission price per adult.
If the admission price for 6 adults and 3 chgildren is 276yuan,then the admission price per adult is ( ) A.24yuan B.32yuan C.36yuan D.40yuan
答
选C
设1个adult x yuan,1个child就是5x/9 yuan
6*x+3*5x/9=276
x=36 yuan