GWD-10-21

maxwell5858

红字的部分不明白再说什么，哪位大侠帮忙讲解一下。谢谢

Q21:

At a garage sale, all of the prices of the items sold were different.  If the price of a radio sold at the garage sale was both the 15th highest price and the 20th lowest price among the prices of the items sold, how many items were sold at the garage sale?

 

A.     33

B.     34

C.     35

D.     36

E.      37

huangxiuying

试着说一下吧，R的价格即是某15件中价格最高的，又是某20件中最低的，选B 吧