Mixture of nuts

Alice bought a mixture of nuts containing cashew nuts, hazelnuts and peanuts in a ratio of 1: 2: 3. Calculate the weight in grams of the whole mixture if the peanuts weigh 90 g.

Correct result:

x =  180 g


31+2+3 x=90  x=90/31+2+3=180=180 g   Verifying Solution:  k=x 11+2+3=180 11+2+3=30 g l=x 21+2+3=180 21+2+3=60 g m=k+l+90=30+60+90=180 m=x

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