1MA0 Foundation June 2017 Paper 1 Q22
22 Babajan makes breakfast cereal.
She mixes nuts, raisins and oats in the ratio 3 : 2 : 5 by weight.
On Monday, Babajan uses 60 grams of nuts.
(a) Work out the weight of raisins and the weight of oats she uses to make the breakfast cereal. (3)
On Tuesday, Babajan makes 300 grams of the breakfast cereal.
500 grams of nuts cost £8
(b) Work out the cost of the nuts used to make 300 grams of the breakfast cereal. (3)
| Answer | Mark | Notes |
|---|---|---|
| 40, 100 | 3 | M1 method to find unit weight e.g. \(60 \div 3\) (= 20) M1 for complete method to find weight of one of the other ingredients e.g. \(\text{``}20\text{''} \times 2\) (= 40) or \(\text{``}20\text{''} \times 5\) (= 100) A1 cao |
| Answer | Mark | Notes |
|---|---|---|
| 1.44 | 3 | M1 for a complete method to work out the weight of nuts needed e.g. \(300 \div (3 + 2 + 5) \times 3\) (= 90) or \(300 \div (60 + \text{``}40\text{''} + \text{``}100\text{''}) \times 60\) (= 90) M1 for a complete method to work out the cost eg \((800 \div 500) \times \text{``}90\text{''}\) (= 144) A1 cao |