Question 97070
40/(135-X)=20/(75-X) NOW CROS MULTIPLY
40(75-X)=20(135-X)
3000-40X=2700-20X
-40X+20X=2700-3000
-20X=-300
X=-300/-20
X=15 GRAMS FOR THE CANS WEIGHT.
PROOF
40/(135-15)=20/(75-15)
40/120=20/60
240=240