Problem Solving

试题详情

题目:

A certain office supply store stocks 2 sizes of self-stick notepads, each in 4 colors: blue, green, yellow, or pink. The store packs the notepads in packages that contain either 3 notepads of the same size and the same color or 3 notepads of the same size and of 3 different colors. If the order in which the colors are packed is not considered, how many different packages of the types described above are possible?

选项:

A、 6
B、 8
C、 16
D、 24
E、 32

答案:

C

提问:

为什么这个题的表达式没✖️A22和A44呢,从两个size里挑选一个size,可以任意挑选啊,颜色也是,为什么不✖️A呢?
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提问:

为什么这个题的表达式没✖️A22和A44呢,从两个size里挑选一个size,可以任意挑选啊,颜色也是,为什么不✖️A呢?
评分: 0
浏览: 2383
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