Question

各位帮帮忙吧``! ~ 不知道怎么解题(我要过程!)

Answer 1

设卖x元,总票数为a.

3/5 * (2/3)a*12+ 1/2 *(1/3)a*16=(2/3 a-3/5*2/3 a)*16+(1/3 a-1/3*1/2 a)x

112/15 a=64/15 a+1/6 ax

112/15=64/15+1/6 x

x=19.2