Foundation November 2024 Paper 3 Q15
15 Shop A and shop B have special offers on the same cupcakes.
(a) Show that the special offer cost of 6 cupcakes from Shop A is £6.25. [1]
(b) Gabi wants 25 cupcakes for a party.
Which shop will be cheapest and by how much?
Show how you decide.
Shop .................. by ..................p [5]
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| \(1.25 \times 3 + 2 \times 1.25\) oe | 1 | Addition implied by column with answer at bottom Accept \(1.25 \times 5\) or 1.25 + 1.25 + 1.25 + 1.25 + 1.25 Condone \(6 \times 1.25 - 1.25\) If working in pence must change 625 to 6.25 | |
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| A 5[p] with 23.75 and 23.8[0] seen | 5 | B2 for [total price A] 23.75 or M2 for \(6 \times 3 \times 1.25 + 1.25\) oe | \(3 \times 1.25 = (3.75)\) then their \(3.75 \times 6 = (22.5) + 1.25\) or \(\dfrac{1.25 \times 3}{4} \times 24 + 1.25\) oe or \(19 \times 1.25\) oe |
| or M1 for \(25 \div 4\) or 6 [lots] or \(\dfrac{1.25 \times 3}{4}\) soi 0.9375 | May be 4+4+4+4+4+4 | ||
| AND B2 for [total price B] 23.8[0] or M2 for \(8 \times 2 \times 1.4[0] + 1.4[0]\) oe | or \(1.4[0] \times 2 = 2.8[0]\) then their \(2.80 \times 8 = (22.4) + 1.4[0]\) or \(\dfrac{2.80}{3} \times 24 + 1.40\) or \(17 \times 1.4\) oe | ||
| or M1 for \(25 \div 3\) or 8 [lots] or \(\dfrac{2.80}{3}\) soi 0.93 | May be 3+3+3+3+3+3+3+3 | ||
| If 0, 1 or 2 scored, instead award SC3 for Shop A and 5[p] or If 0 or 1 scored, instead award SC2 for their cheapest shop and correct difference between their prices in pence | Their two total prices must be clearly identifiable Allow £ sign added to give e.g. £2.05[p] | ||