<h3>¿Alcohol o gasolina?</h3>
<script>
var tanque = 40 ;
var gasolina = 480 ;
var alcohol = 300 ;
document.write( " el auto recorre " + gasolina/tanque + " kilometros x casa litro de gasolina ");
document.write("<br>");
document.write("<br>");
document.write( " el auto recorre " + alcohol/tanque + " kilometros x casa litro de Alcohol " );
</script>