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题库 / GMATAdvanced-PS-56
Five integers between 10 and 99, inclusive, are to be formed by using each of the ten digits exactly once in such a way that the sum of the five integers is as small as possible.What is the greatest possible integer that could be among these five numbers?
98
91
59
50
37
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题干：Five integers between 10 and 99, inclusive, are to be formed by using each of the ten digits exactly once in such a way that the sum of the five integers is as small as possible.
这句话很难懂， 实际意思，五个整数，10-99之间，每个整数形成是通过（0-9）中随机取两个做十位和个位。然后问在五个整数加总和最小的情况下，哪个整数最大。
其实换个思路，五个整数，一定是五个数字做十位，五个数字做个位，那么取最小的五个数字做十位（因为范围是10-99， 所以排除0），不管怎么排列一定是总和最小
十位：1-5；个位：0，6-9。总和180.
取最大的十位和个位，可以组成59这个最大的整数
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