A man can drink a barrel of water for 26 days, woman for 48 days. How many days will a barrel last between them?
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Very poor English! Who phrased this problem(?) as it is not stated correctly - it is incoherent!
Extremely poor wording! A man drinks a barrel of water for 26 days, woman for 48 days, for how many days they drink barrel together? Who wrote this???? It should be, a man can drink...., and a woman...., how many days will a barrel last between them (or for both of them). Who ever wrote this question has very poor English skills and should not be writing math word problems using English!
To solve this example are needed these knowledge from mathematics:
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