There were 12 runners in a marathon. They lined up as follows.What number should

游客2023-10-20 49

问题 There were 12 runners in a marathon. They lined up as follows.What number should the 12th runner have?
8 5 4 46 52 61
7 6 9 94 63 ?

选项

答案 18

解析 (8×8=64 Reversed=46
5×5=25 Reversed=52
4×4=16 Reversed=61
7×7=49 Reversed=94
6×6=25 Reversed=63
9×9=81 Reversed=18)

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