Drinking water
A man drinks a keg of water in 36 days, and a woman drinks in 65 days. How many days do they consume a keg together?
Correct answer:
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You need to know the following knowledge to solve this word math problem:
- statistics
- harmonic mean
- algebra
- equation
- arithmetic
- multiplication
- division
- basic functions
- reason
- numbers
- fractions
- rational numbers
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