问题
解答题
一项工作,甲单独做要4天,乙单独做要6天,甲乙合作5天完成.______.
答案
1÷(
+1 4
),1 6
=1÷
,5 12
=
(天);12 5
≠5;12 5
故答案为:错误.
一项工作,甲单独做要4天,乙单独做要6天,甲乙合作5天完成.______.
1÷(
+1 4
),1 6
=1÷
,5 12
=
(天);12 5
≠5;12 5
故答案为:错误.
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