有红、黄、蓝、绿、白五种颜色的铅笔,每两种颜色的铅笔为一组,最多可以搭配成不重复的几组?根据题意,红色铅笔分别与黄、蓝、绿、白四种颜色的铅笔搭配,有不重复的4组;黄色铅笔分别与蓝、绿、白三种颜色的铅笔搭配,有不重复的3组;蓝色铅笔分别与绿、白二 There are red, yellow, blue, green, white five kinds of color pencils, pencils for each two colors as a group, can be used with up to several groups? According to the inscription, the red pencil with yellow, blue, green, White with four colors of the pencils, there is no repetition of the 4 groups; yellow pencils with blue, green and white, respectively, with three colors of the pencils, there are three groups of non-repetitive; blue pencil, respectively, green and white