Question 1101216
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You can solve mixture problems like this quickly using the method of alligation.<br>
Do a search of the internet if you want to learn about the method; I will just give you a quick description of how your example is solved using the method.<br>
The percentages of copper in the two ingredients in the mixture are 41 and 51; the percentage in the mixture is 44.<br>
The 44 is 3/10 of the way from 41 to 51 (from 41 to 51 is 10; from 41 to 44 is 3).<br>
That means 3/10 of the mixture is the 51% copper scrap metal.<br>
3/10 of 1700g is 510g.<br>
Answer B