Each boy eats half a chocolate, so for 6 boys, they would eat 6 * 0.5 = 3 chocolates in total. Since the question asks for the number of chocolates for 6 days, we multiply the number of chocolates eaten in one day by 6, resulting in 3 * 6 = 18 chocolates. However, the question states that there are 6 boys for 6 days, so each boy would eat 18 / 6 = 3 chocolates in total. Therefore, the correct answer is 24 chocolates.