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一道JJ
A sum of money that includes two kinds of coins, 0.25 and 0.05 face value. The total maney is 2.9 dollars. Ask if the number of 0.25 coins is divided by 5, what is the remaining value of money.
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这题越看越糊涂.问的是remaining value of money.答案怎么可能是4 3 2 1 0 呢?
如果"the digit of 5t must be 0 or 5, consequently that of y must be 8 or 3",那
remaining value of money就是: 8*0.05 OR 33*0.05, 没答案呀?
这题到底问什么呀? 请教DX. 谢先. |
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