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 proportion
Units of physical quantities:
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Grade of the word problem:
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