In a certain flower shop,only 3 vases of flowers and 1 werat
In a certain flower shop,only 3 vases of flowers and 1 werath can be displayed,in this order,
at one time.If there are 10 vases of flowers and 4 wreaths to choose from,how many different arrangements of vases and wreaths are possible?
at one time.If there are 10 vases of flowers and 4 wreaths to choose from,how many different arrangements of vases and wreaths are possible?
可能相似的问题
你能帮帮他们吗