Higher November 2018 Paper 6 Q6
6 In a box of mixed nuts, the total number of almonds, cashews and peanuts is 1025.
The ratio of almonds to cashews is 1 : 3.
The ratio of cashews to peanuts is 5 : 7.
Calculate the number of cashews in the box. [4]
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| 375 | 4 | M3 for 1025 ÷ (5k + 15k + 21k) × 15k oe or M2 for 1025 ÷ (5k + 15k + 21k) oe or M1 for two ratios with a common number of cashews implied by 5k (almonds) and 21k (peanuts) seen, k > 0 or for 5 : 15 [: 21] or [5 :] 15 : 21 or 41 seen | M3 implied by 125, 375, 525 with 375 not selected |