Foundation November 2018 Paper 1 Q15
15 Shahid is going to use these instructions to make a fizzy drink.
| Mix 5 parts of orange juice with 2 parts of lemonade |
Shahid thinks that he has 300 ml of orange juice and 200 ml of lemonade.
(a) If Shahid is correct, what is the greatest amount of fizzy drink he can make? (3)
Shahid has 300 ml of orange juice but he only has 160 ml of lemonade.
(b) Does this affect the greatest amount of fizzy drink he can make?
Give a reason for your answer. (1)
Give a reason for your answer. (1)
| Answer | Mark | Mark scheme |
|---|---|---|
| 420 | P1 | starts process, eg \(300 \div 5\ (= 60)\) or \(200 \div 2\ (= 100)\) OR builds up ratio to at least 300 ml orange juice with one error |
| P1 | complete process, eg \(\text{``}60\text{''} \times 5 + \text{``}60\text{''} \times 2\) or 300 : 120 | |
| A1 | cao |
Additional guidance
May be seen as \(\text{``}60\text{''} \times 7\)
“60” must come from correct method
| Answer | Mark | Mark scheme |
|---|---|---|
| explanation | C1 | explains that it will have no effect with reason, eg because he only needs 120 ml of lemonade because he has no more orange juice to use |