ans: c: 364, d: 84 e: 371
- 翻雷滾天 風卷殘雲Lv 79 years agoFavorite Answer
a) If anchovies cannot be selected, we still have 14 toppings to choose 3 randomly from them
So no. of combinations = 14C3 = 364
b) Excluding the vegetables, we still have 9 toppings to choose 3 randomly from them
So no. of combinations = 9C3 = 84
c) When there's no limitation, a total of 15C3 = 455 different combinations can be made.
So no. of 3-topping pizzas with at least one vegetable is 455 - 84 = 371Source(s): 原創答案