Higher November 2018 Paper 2 Q11
11 In a restaurant there are
9 starter dishes
15 main dishes
8 dessert dishes
Janet is going to choose one of the following combinations for her meal.
a starter dish and a main dish
or a main dish and a dessert dish
or a starter dish, a main dish and a dessert dish
Show that there are 1335 different ways to choose the meal. (3)
| Answer | Mark | Mark scheme |
|---|---|---|
| 1335 | M1 | for one correct procedure eg \(9 \times 15\ (= 135)\) or \(15 \times 8\ (= 120)\) or \(9 \times 15 \times 8\ (= 1080)\) |
| M1 | for all three correct products eg “135”, “120”, “1080” or \(9 \times 15\), \(15 \times 8\), \(9 \times 15 \times 8\) oe | |
| C1 | for showing the three correct products added eg \(135 + 120 + 1080\) |
Additional guidance
Ignore additional products.
Only these three products must be identified. There is no need to indicate summing at this stage.
There is no need to show the three products sum to 1335