Asked by Shaun

Five-twelfths of my salary was spend on food, then I gave 3/7 of the remainder to my sister and had 856 pesos left. How much did I spend for food?
Answered by Steve
5/12 + (3/7)(7/12) = 5/12 + 3/12 = 2/3

So, 1/3 of the original amount = 856
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