Foundation November 2019 Paper 3 Q12
12 A bottle contains 1.5 litres of water.
650 millilitres of the water is poured into a jug.
How much water is left in the bottle?
State the units of your answer. [3 marks]
| Answer | Mark | Comments |
|---|---|---|
| Alternative method 1 | ||
| \(1.5 \times 1000\) or 1500 | M1 | oe |
| their \(1500 - 650\) or 850 | M1dep | oe eg \(1000 - 650 + 500\) |
| 850 millilitres | A1 | oe eg 850 ml |
| Alternative method 2 | ||
| \(650 \div 1000\) or 0.65(0) | M1 | oe |
| \(1.5 -\) their 0.65(0) or 0.85(0) | M1dep | oe eg \(1 - 0.65 + 0.5\) |
| 0.85(0) litres | A1 | oe eg 0.85(0) l |
| Alternative method 3 | ||
| \(1.5 \times 100\) or 150 and \(650 \div 10\) or 65 | M1 | oe |
| their \(150 -\) their 65 or 85 | M1dep | oe eg \(100 - 65 + 50\) |
| 85 centilitres | A1 | oe eg 85 cl |
Additional guidance
| Ignore incorrect conversion attempt if correct answer has been seen | |
| 850 on answer line with 850 ml in working | M1M1A1 |
| \(1.5 - 650 = 850\) ml | M1M1A1 |
| \(1.5 - 650 = 0.85(0)\) l | M1M1A1 |
| \(1.5 - 650 = 850\) | M1M1A0 |
| \(1.5 - 650 = 0.85(0)\) | M1M1A0 |
| Condone incorrect spelling – mark intention |