Higher June 2023 Paper 5 Q6
6 Taylor has a full bottle of medicine.
The bottle holds 20 doses of medicine.
Each day Taylor takes one dose of medicine out of the bottle.
After 8 days, there are 180 millilitres of medicine left in the bottle.
Work out how many millilitres of medicine the bottle holds when full. [4]
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| 300 | 4 | M3 for 180 ÷ (20 – 8) × 20 oe or M2 for 180 ÷ (20 – 8) or 180 = \(\frac{20 - 8}{20}\) oe or M1 for \(\frac{20 - 8}{20}\) oe or \(\frac{8}{20}\) oe or (20 – 8) : 20 oe or 8 : 20 oe If 0 scored SC1 for answer 450 | M3 for a complete method that would lead to 300 M2 implied by 1 [dose] = 15 oe e.g. 4 [doses] = 60, 2 [doses] = 30 etc Accept reciprocals of fractions for M1 or ratios reversed |