1MA0 Foundation November 2013 Paper 2 Q19
*19 Plants are sold in three different sizes of tray.
A small tray of 30 plants costs £6.50
A medium tray of 40 plants costs £8.95
A large tray of 50 plants costs £10.99
Kaz wants to buy the tray of plants that is the best value for money.
Which size tray of plants should she buy?
You must show all your working. (4)
| Answer | Mark | Notes |
|---|---|---|
| Small with correct figures for comparison | 4 | M1 for one calculation e.g. 6.5 ÷ 30 (=0.216...) or 8.95 ÷ 40 (=0.22375) or 10.99 ÷ 50 (=0.2198) M1 for all three calculations e.g. of 6.5 ÷ 30 (=0.216...) and 8.95 ÷ 40 (=0.22375) and 10.99 ÷ 50 (=0.2198); A1 for 0.216... and 0.22375 and 0.2198... can be rounded or truncated as long as they remain different C1 (dep on M1) for conclusion ft from three comparable figures [could use different figures relating to 30, 40, 50] OR M1 for one calculation e.g 6.5 × 20 (=130) or 8.95 × 15 (=134.25) or 10.99 × 12 (=131.88) M1 for three calculations e.g. 6.5 × 20 (=130) and 8.95 × 15 (=134.25) and 10.99 × 12 (=131.88) A1 for 130 and 134.25 and 131.88 can be rounded or truncated as long as they remain different C1 (dep on M1) for conclusion ft from three comparable figures [or any other calculations leading to comparable figures e.g. cost of 600 plants or comparing small and medium and small and large e.g. 120 plants and 150 plants separately] Or M1 for one calculation e.g 30 ÷ 6.5 (= 4.615…) or 40 ÷ 8.95 (= 4.469…) or 50 ÷ 10.99 (= 4.549…) M1 for three calculations e.g. 30 ÷ 6.5 (= 4.615…) and 40 ÷ 8.95 (= 4.469…) and 50 ÷ 10.99 (= 4.549…) A1 for 4.615… and 4.469… and 4.549… can be rounded or truncated as long as they remain different C1 (dep on M1) for conclusion ft from three comparable figures [or any other calculations leading to comparable figures] |