# A report

Maricris can type a committee report in 5 hours. Jane helped Maricris, and together they finished the report in 3 hours. How long would it take Jane to complete the report she had worked on alone?

## Correct answer:

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#### You need to know the following knowledge to solve this word math problem:

**statistics**- harmonic mean
**algebra**- equation
- expression of a variable from the formula
**basic functions**- inverse relationship

#### Units of physical quantities:

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#### Grade of the word problem:

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