有若干枚硬币,面值分别为1分,2分和5分,从中任取15枚硬币,面值和为3角5分,求其中1分,2分
\u670915\u679a\u786c\u5e01,\u51713\u89d25\u5206,\u6c42\u5176\u4e2d\u6709\u51e0\u679a1\u5206\u7684\u30012\u5206\u7684\u30015\u5206\u76841\u5206\u786c\u5e011\u679a\uff0c2\u5206\u786c\u5e0112\u679a\uff0c5\u5206\u786c\u5e012\u679a\uff1b
\u62164\u679a\uff0c8\u679a\uff0c3\u679a\uff1b
\u62167\u679a\uff0c4\u679a\uff0c4\u679a\uff1b
\u621610\u679a\uff0c0\u679a\uff0c5\u679a
\u63d0\u793a\uff1a\u8bbe1\u5206\uff0c2\u5206\uff0c5\u5206\u786c\u5e01\u5206\u522b\u6709x\u679a\u3001y\u679a\u3001z\u679a\uff1b\u6839\u636e\u9898\u610f\uff0c\u5f97
x\uff0by\uff0bz\uff1d15 \uff081\uff09
x\uff0b2y\uff0b5z\uff1d35 \uff082\uff09
\uff082\uff09\uff0d\uff081\uff09\u5f97\uff1ay\uff0b4z\uff1d20 \uff083\uff09
\u2234 z\u22645\uff0c\u663e\u7136z\u22600\u4e14z\u22601\uff0c\u22342\u2264z\u22645\uff0c\u5f97\u4e0b\u8868
z 2 3 4 5
x 1 4 7 10
y 12 8 4 0
\u5047\u8bbe\u6ca1\u6709\u4e00\u4e2a5\u5206\u7684\uff0c\u90a3\u4e48\u6700\u5927\u5c31\u662f2\u5206*15\u679a=30\u5206 < 35\u5206\uff0c
\u6240\u4ee5\u5fc5\u987b\u6709\u4e00\u4e2a5\u5206\u7684\u3002 \uff08\u81f3\u6b64\u63a8\u65ad\u51fa\u67091\u4e2a5\u5206\u7684\uff09
\u90a3\u4e48\u5c31\u662f\u8981\u6c4214\u679a\u51d1\u51fa30\u5206
\u540c\u6837\u7684\u4f9d\u636e\uff0c\u81f3\u5c11\u8fd8\u67091\u4e2a5\u5206\u7684 \uff08\u81f3\u6b64\u63a8\u65ad\u51fa\u67092\u4e2a5\u5206\uff09
\u90a3\u4e48\u5c31\u662f\u8981\u6c4213\u4e2a\u51d1\u51fa25\u5206
\u7531\u4e8e25\u662f\u5947\u6570\uff0c\u6240\u4ee51\u5206\u7684\u4e2a\u6570\u80af\u5b9a\u662f\u5947\u6570\uff0c\u5c31\u662f\u8bf4\u81f3\u5c11\u67091\u4e2a \uff08\u81f3\u6b64\u63a8\u65ad\u67092\u4e2a5\u5206\uff0c1\u4e2a1\u5206\uff09
\u90a3\u4e48\u5c31\u662f\u8981\u6c4212\u4e2a\u51d1\u51fa24\u5206\uff0c\u663e\u7136\u53ea\u8981\u670912\u4e2a2\u5206\u5c31\u53ef\u4ee5\u4e86\u3002
\u6240\u4ee5\u7b54\u6848\u5c31\u662f1\u4e2a1\u5206\uff0c12\u4e2a2\u5206\uff0c 2\u4e2a5\u5206
7个1分=7
4个5分=20
8+7=15
15+20=35
3角5分
绛旓細涓鍏辨槸4涓2鍒=8 7涓1鍒=7 4涓5鍒=20 8+7=15 15+20=35 3瑙5鍒
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绛旓細2鍒嗗拰1鍒嗙‖甯鏁伴噺鐩稿悓鍒 = 5鍒嗛挶 + 3鍒嗛挶 鍋囪 X 涓 5 鍒嗛挶锛 Y 涓1鍒 & 2鍒 5X + 3Y = 92 (X, Y)= (1, 29)= (4, 24)= (7, 19)= (10, 14)= (13, 9)= (14, 4)
