A ore contains 12% copper. How many kg of ore are required to get 69 k

1.	A ore contains 12% copper. How many kg of ore are required to get 69 kg of copper ?
A.	424 kg
B.	575 kg
C.	828 kg
D.	1736
E.	<sub>2/<sub>3</sub> kg </sub>
Answer» C. 828 kg

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A ore contains 12% copper. How many kg of ore are required to get 69 kg of copper ?

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