doubled2 doubled2

18-12-2016
Mathematics

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if workers were able to pave 1/3 of your driveway in 40 minutes if they work at same rate what portion of driveway will they pave in one hour

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MathisLif3 MathisLif3

18-12-2016

40min is 1/3
implies 20min is 1/6
60min is 1/3+1/6=3/6=1/2

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