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標題:
數 - (52) Minimum
發問:
a , b , c are positive integers ,and 2000 - [ c / 3 + 2b - 6a + 2 ( 7 + abc ) + b ] can be divided by 3and1000 - [ a + 7 ( 6 + 2b - 3c ) - ab + bc - ac - 15 ] can be divided by 7and500 - [ ab + ac + bc - a ^ 2 - b ^ 2 - c ^ 2 ] can be divided by 2andab + c = 30aFind the smallest answer of a + b + c 顯示更多 a , b , c are positive integers , and 2000 - [ c / 3 + 2b - 6a + 2 ( 7 + abc ) + b ] can be divided by 3 and 1000 - [ a + 7 ( 6 + 2b - 3c ) - ab + bc - ac - 15 ] can be divided by 7 and 500 - [ ab + ac + bc - a ^ 2 - b ^ 2 - c ^ 2 ] can be divided by 2 and ab + c = 30a Find the smallest answer of a + b + c 更新: Find the smallest answer of a is OK .
最佳解答:
The answer is 2
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