Higher November 2019 Paper 5 Q4
4 In 2017, a chocolate bar had a mass of 250 g.
In 2018, the mass of the chocolate bar was reduced to 220 g.
Work out the percentage decrease in the mass of the chocolate bar from 2017 to 2018. [3]
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| 12 | 3 | M2 for \(\frac{250 - 220}{250}\) [×100] oe or \(\frac{220}{250} \times 100\) oe or M1 for \(\frac{220}{250}\) oe or 250 - 220 | M2 implied by 0.12 or 88[%] M1 implied by 0.88 or 30 |