找规律填数:(2,5,7,35)(4,6,3,36)(5,3,8,60)(?,2,3,21)请问问号应该是几啊

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找规律填数:(2,5,7,35)(4,6,3,36)(5,3,8,60)(?,2,3,21)请问问号应该是几啊找规律填数:(2,5,7,35)(4,6,3,36)(5,3,8,60)(?,2,3,21

找规律填数:(2,5,7,35)(4,6,3,36)(5,3,8,60)(?,2,3,21)请问问号应该是几啊
找规律填数:(2,5,7,35)(4,6,3,36)(5,3,8,60)(?,2,3,21)
请问问号应该是几啊

找规律填数:(2,5,7,35)(4,6,3,36)(5,3,8,60)(?,2,3,21)请问问号应该是几啊
7
2*5*7/2=35
4*6*3/2=36
5*3*8/2=60
7*2*3/2=21

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21