Foundation January 2021 Paper 2R Q6
6 Mikhal has 1200 grams of cake mixture.
He is going to make 3 cakes, cake A, cake B and cake C.
\(\dfrac{4}{15}\) of the weight of the cake mixture will be used to make cake A.
The rest of the cake mixture will be used to make cake B and cake C.
The weight of the cake mixture used to make cake B and the weight of the cake mixture used to make cake C will be in the ratio 3 : 8
Work out the weight of the cake mixture used to make each of cake A, cake B and cake C.
(4)
| Scheme | Marks |
|---|---|
\(\dfrac{4}{15} \times 1200\) (= 320) or for \(\dfrac{3}{15}\) or \(\dfrac{8}{15}\) seen | M1 |
1200 – “320” (= 880) and “880” ÷ 11 (= 80) or \(\dfrac{3}{11} \times 880\) (= 240) oe or \(\dfrac{3}{15} \times 1200\) (= 240) oe | M1 |
1200 – (“320” + “240”) or 880 – 240 (= 640) or \(\dfrac{8}{11} \times 880\) (= 640) or \(\dfrac{8}{15} \times 1200\) oe | M1 |
| 320, 240, 640 | A1 |
| (4) | |
| (4 marks) |
Notes
A1: Must be on correct answer lines or clearly attributed to cake A, B and C, otherwise withhold final A mark.