<!DOCTYPE html>
<meta charset="utf-8">
<h3>Álcool ou Gasolina?</h3>
<script>
var tanque = 40
var caminhoComGasolina = 480
var caminhoComAlcool = 300
var consumoDeGasolina
var consumoDeAlcool
document.write("Consumo de gasolinha: <br>")
document.write(consumoDeGasolina = caminhoComGasolina/tanque + "km/l");
document.write("<br> Consumo de alcool: <br>")
document.write(consumoDeGasolina = caminhoComAlcool/tanque + "km/l");
</script>