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put this solution on YOUR website!Kim and Sandy are each knitting a scarf.
Kim can knit 3 rows in 5 minutes,
Kim rate: 3/5 row/min
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while Sandy can knit 4 rows in 6 minutes.
Sandy rate: 2/3 row/min
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They start knitting at the same time and do not take any breaks.
Kim wants her scarf to be 84 rows long.
Kim time for 84 rows: 84/(3/5) = 5*28 = 140 minutes
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Sandy wants her scarf to be 88 rows long. Who will finish her scarf first and by how many minutes?
Sandy time for 88 rows: 88/(2/3) = 3*44 = 132 minutes
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Cheers,
Stan H.
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