1MA0 Foundation June 2012 Paper 2 Q23
*23 Potatoes cost £9 for a 12.5 kg bag at a farm shop.
The same type of potatoes cost £1.83 for a 2.5 kg bag at a supermarket.
Where are the potatoes the better value, at the farm shop or at the supermarket?
You must show your working. (4)
| Answer | Mark | Notes |
|---|---|---|
| Farm shop | 4 | M1 for \(12.5 \div 2.5\) (=5) M1 for ‘5’ \(\times 1.83\) or ‘5’ \(\times 183\) A1 for (£)9.15 or 915(p) C1 for decision ft working shown dep on at least M1 OR M1 for \(12.5 \div 2.5\) (=5) M1 for \(9 \div 5\) or \(900 \div\) ‘5’ A1 for (£)1.8(0) or 180(p) C1 for decision ft working shown dep on at least M1 OR M1 for \(9 \div 12.5\) (=0.72) or \(1.83 \div 2.5\) (=0.732) M1 for \(9 \div 12.5\) (=0.72) and \(1.83 \div 2.5\) (=0.732) A1 for 72(p) and 73.(2)(p) or (£)0.72 and (£)0.73(2) C1 for decision ft working shown dep on at least M1 OR M1 for \(12.5 \div 9\) (= 1.388...) oe M1 for \(2.5 \div 1.83\) ( = 1.366.)oe A1 for 1.38.... and 1.36... truncated or rounded to at least 3SF C1 for decision ft working shown dep on at least M1 |