John can type 2/3 of a manuscript in 12 hours. If he is joined by Laura, they can complete the typing in 2 hours. How many hours would Laura take to type the manuscript working alone?
2 answers:
John will take 18 hours to type the thing by himself. Laura does 8/9 of the work and John does 1/9. Laura can do it alone in 2 hours 15 minutes. which is 2 1/4 hours. So the answer would be C.) 2.25 hours.
Hello there,9/4 or 2.25 </span>-HotTwizzlers
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