Question

食堂有三种主食，六种菜肴，如主食选一种，菜肴选两种，有几种方法

Answer 1

36种吧 不知道对不对

Answer 2

主食 principal food 菜肴 dish用大米当主食，用腐竹当菜肴 take the rice as the principal food and the bean curd stick as dish.