设乙袋的质量是x千克,则甲袋的质量是2x千克,
2x+40=(x+40)×1.5
2x+40=1.5x+60
0.5x=20
x=40
2x=2×40=80(千克).
答:原来甲袋有80千克大米,乙袋有40千克大米.
有甲和乙两袋大米,甲袋的质量是乙袋的2倍,向两袋分别添加40千克大米后,甲袋的质量是乙袋的1.5倍,原来两袋大米各有多少千克?
有甲和乙两袋大米,甲袋的质量是乙袋的2倍,向两袋分别添加40千克大米后,甲袋的质量是乙袋的1.5倍,原来两袋大米各有多少千克?
数学人气:280 ℃时间:2019-10-10 05:25:21
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