Foundation November 2017 Paper 3 Q15
15 The ratio of the cost of one metre of cotton fabric to the cost of one metre of silk fabric is 2 : 5
Complete the table of costs.
| 2 m | 6 m | 8 m | 9 m | |
|---|---|---|---|---|
| cotton fabric | £6 | |||
| silk fabric |
(3)
| Answer | Mark | Notes |
|---|---|---|
| (£6), 18, 24, 27 15, 45, 60, 67.50 | M1 | demonstrates a proportional method to find at least one cost for cotton, eg. \(£6 \div 2 \times 9\ (= (£)27)\) or a correct entry in the table. |
| M1 | demonstrates a proportional method to find at least one cost for silk, eg. \(£6 \div 2 \times 5\ (= (£)15)\) or a correct entry in the table. | |
| A1 | for a fully correct table (accept 67.5(0)) |