Increased 12821

Compared to last year, the milk price doubled in May this year and fell to half the increased price in October. Now a liter of milk costs 50 cents. How many euros did 100 liters of milk last year?

Correct answer:

x =  50 Eur

Step-by-step explanation:

V=100 l c2=0.50 Eur/l  c1 2 /2 = c2  c1=c2=0.5=21=0.5 Eur/l  x=V c1=100 0.5=50 Eur

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