In the doctors neighborhood, it was identified that in a tortilleria 15 kilos of tortillas are demanded when there is an income of $100 in a period of 1 hour, if the income rises to $250, 10 kilos of tortillas will be demanded in the same period of time, calculate the income elasticity of demand. Identify what type of elasticity is According to elasticity, what kind of good are the tortillas for this example? explain the result