<meta charset="UFT-8">
<h3>¿Alcohol o gasolina?</h3>
<script>
    var tanqueGasolina = 40;
    var tanqueAlcohol = 40;
    var recorridoGasolina = 480;
    var recorridoAlcohol = 300;
    var consumoGasolina = recorridoGasolina / tanqueGasolina;
    var consumoAlcohol = recorridoAlcohol / tanqueAlcohol;
    document.write("el consumo de gasolina es: " + consumoGasolina + " km/L");
    document.write("<br>");
    document.write("el consumo de alcohol es: " + consumoAlcohol + " km/L");
</script>