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To set the walls of Nizar's house, cemen...

To set the walls of Nizar's house, cement and sand were used in the ratio `1: 5 .` He bought 45 sacks of cement. How many sacks of sand should he buy?

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Ratio of cement and san.d `` =1 div 5 `` Here one sack of cement is mixed with five sacks of sand. Nùmber of sacks of sandneeded to mix with 45 sacks of cement `` =45 xx 5=225 sacks ``
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