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2015-05-21T20:19:16+08:00

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Each roll is 20.5 m. There are a total of 4 rolls, so to find how long the rolls, multiply

20.5 m x 4=82 m

Hope this helps =)
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2015-05-22T08:40:02+08:00

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So this means, every 1 roll contained 20.5 meters of crepe paper 
there are 4 rolls of narrow crepe paper. therefore, multiply 20.5 meter to the 4 rolls crepe paper and you'll get 82 m of narrow crepe paper did the committee have in all. 
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