# 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

#### Units of physical quantities:

#### Themes, topics:

#### Grade of the word problem:

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