The college bookstore sells T-shirts in three colors: gold, black, and purple. If the colors are in the ratio 2:3:5 and the bookstore has 10 gold shirts.
How many purple shirts are there?
A.5
B.10
C.15
D.20
E.25
我的答案：
The college bookstore sells T-shirts in three colors: gold, black, and purple.
If the colors are in the ratio 2:3:5 and the bookstore has 10 gold shirts.
