If x is 1, 2, 3 or 4 and y is 2, 4 or 8, then the product xy can have how many d

游客2024-01-12  16

问题 If x is 1, 2, 3 or 4 and y is 2, 4 or 8, then the product xy can have how many different possible values?

选项 A、twelve
B、eleven
C、nine
D、seven
E、eight

答案 E

解析 1×4=2×2,1×8=2×4=4×2,2×8=4×4,因此还需要减去4,共有8种值。
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