有面值100元50元20元10元5元2元1元的人民币各一张,可以组成多少种不同的币值
3个回答
展开全部
1,2,3,5,6,7,8,10,11,12,13,15,16,17,18,20,21,22,23,25,26,27,28,30, (24个)
31,32,33,35,36,37,38,50,51,52,53,55,56,57,58,60,61,62,63,65,66,67,68,70, (24个)
71,72,73,75,76,77,78,80,81,82,83,85,86,87,88,100,101,102,103,105,106,107,108,110,(24个)
111,112,113,115,116,117,118,120,121,122,123,125,126,127,128,130, (16个)
131,132,133,135,136,137,138,150,151,152,153,155,156,157,158,160, (16个)
161,162,163,165,166,167,168,170,171,172,173,175,176,177,178,180, (16个)
181,182,183,185,186,187,188. (7个)
总计:24*3+16*3+7=127(种)
31,32,33,35,36,37,38,50,51,52,53,55,56,57,58,60,61,62,63,65,66,67,68,70, (24个)
71,72,73,75,76,77,78,80,81,82,83,85,86,87,88,100,101,102,103,105,106,107,108,110,(24个)
111,112,113,115,116,117,118,120,121,122,123,125,126,127,128,130, (16个)
131,132,133,135,136,137,138,150,151,152,153,155,156,157,158,160, (16个)
161,162,163,165,166,167,168,170,171,172,173,175,176,177,178,180, (16个)
181,182,183,185,186,187,188. (7个)
总计:24*3+16*3+7=127(种)
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