A manufacture packages soap powder in containers of three different sizes. The amount of soap powder in a full large container could fill exactly 3 of the medium containers or exactly 5 of the small containers. If an equal number of small and large containers are to be filled with the amount of soap powder that would fill 90 medium containers, how many small containers will be filled? E.55
A.25 B.27 C.30 D.45
【参考答案】
A 解析：一名制造商把洗衣粉装入三种不同尺寸的容器中。装满的大容器中的洗衣粉的量可以装满3个中型容器或5个小容器......