Refueling 83303

A liter of gasoline costs €1.2. After refueling, my car weight increased by 15 kg. The density of gasoline is p=750kg/m3. How many euros did I fill up with?

Correct answer:

x =  24 eur

Step-by-step explanation:

c=1.2 eur/l m=15 kg ρ1=750 kg/m3  ρ2=ρ1/1000=750/1000=43=0.75 kg/l  ρ2 = m/V  V=m/ρ2=15/0.75=20 l  x=c V=1.2 20=24 eur

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