3台拖拉机五分之三小时耕地十分之九公顷平均每台拖拉机每小时耕地多少公顷?每台拖拉机耕一公顷地用多少小
要列式
人气:271 ℃ 时间:2019-08-19 04:59:42
解答
3X*3/5=0.9===>X=(0.9*5/3)/3=0.5公顷/小时
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