An airline sells 20% of its tickets in business class, and the rest in tourist class. 70% of business class passengers and 50% of tourist class passengers order a meal on board. The plane takes off with 250 passengers. True or false? Justifie: a) 35 business class passengers eat the meal. b) 75 passengers in tourist class take a meal. c) 125 passengers are in tourist class. d) The number of meals served in business class is greater than that of meals served in tourist class.