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Mathematics 8 Online
OpenStudy (anonymous):

ted can sweep a porch in 13 min . one day his friend kim helped and she got it done in 4.95 mins , find how long it would take kim to do it alone ?

hero (hero):

I believe the question is expressed incorrectly.

hero (hero):

I believe it meant to say that "they both got it done 4.95 mins together".

OpenStudy (anonymous):

i guess my teacher made a typo

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