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:

J =  7.5 h

Step-by-step explanation:

 3  ( J1 + 51) = 1  J1 = 1/3  1/5  J=1/31/51=215 h=7.5 h

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