求问数学题

zhuochangpei

求问大家两个数学题，知道怎么做的帮忙解答一下。
1.问一下这句话是什么意思：if the selling price per coat had been twice as much, the strore's gross profit in the 20 coats would have been 24000.
2.  A certain roller coaster has 3 cars, and a passenger is equally likely to ride in any 1 of the 3 cars each time that the passenger rider the roller coaster. if a certain passenger is to rider the roller ocaster 3 times. what is the possibility that the passenger will ride in ecah of the cars? 求解一下答案， 麻烦大家！！

jy03161061

if the selling price per coat had been twice as much, the strore's gross profit in the 20 coats would have been 24000.
我觉得是as much 后面省了，应该是如果售出价格是现在的两倍，那么the strore's gross profit in the 20 coats would have been 24000

 A certain roller coaster has 3 cars, and a passenger is equally likely to ride in any 1 of the 3 cars each time that the passenger rider the roller coaster. if a certain passenger is to rider the roller ocaster 3 times. what is the possibility that the passenger will ride in ecah of the cars?

这个是说现在有3辆车，一个乘客可以坐3辆车中的任何一辆，那么3辆车，这个乘客各坐一次的概率是好多

答案应该是P33/3^3=2/9