A contractor mixes concrete from bags of pre-mix for small jobs. How many bags with $4 \%$ cement should he mix with 3 bags of $44 \%$ cement to produce a mix containing $12 \%$ cement?
A) 14 bags
B) 15 bags
C) 12 bags
D) 20 bags

Question

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The Answer of A contractor mixes concrete from bags of pre-mix for small jobs. How many bags with $4 \%$ cement should he mix with 3 bags of $44 \%$ cement to produce a mix containing $12 \%$ cement?
A) 14 bags
B) 15 bags
C) 12 bags
D) 20 bags

A Contractor Mixes Concrete from Bags of Pre-Mix for Small 4%4 \%4%

A Contractor Mixes Concrete from Bags of Pre-Mix for Small $4 \%$