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23-03-2017
Mathematics

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Raul is building a house. On day 1, he uses 3 bags of cement. On each of the following 3 days, he uses 3 times the number of bags used the previous day. How many bags of cement does he use in the last 3 days?

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23-03-2017

18bags
Look if 1=3 2=9 3= 18 so he uses 18 bags!

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