Foundation June 2024 Paper 1 Q12
12 Increase £95 by 16%. [3]
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| 110.2[0] | 3 | M2 for \(1.16 \times 95\) oe or M1 for [0].16 \(\times\) 95 oe | May be done in stages May be implied by 15.2 Do not accept 95 x 116% or 95 x 16% See sheet in appendix for non-calculator methods |
Appendix
Non Calculator methods for percentages.
Labels only
This is when labels such as 10% = are used.
If only labels are used the final answer scores full marks if it is correct.
Condone a numerical slip if the answer is correct.
If there is an error in the values and so the final answer is incorrect this cannot score method marks
e.g. Find 65% of 60
| Method scoring M1A1 | 10% = 6 5% = 3 50% = 30 65% = 39 ✓ M1A1 | 10% = 6 5% = 4 ✖ condone this slip as answer correct 50% = 30 65% = 39 ✓ M1A1 |
| Method scoring M0A0 | 10% = 6 5% = 4 ✖ M0 Do not condone this slip as answer incorrect 50% = 30 65% = 40 ✖ |
Build up method
This is where the candidate finds the percentages to build up to the required value but shows the operations used.
e.g. Find 65% of 60
10% = \(60 \div 10 = x\)
5% = \(x \div 2 = y\)
50% = \(x \times 5 = z\)
65% = \(x + z + y\)
Because the operations have been shown and they are correct, if there is an error in one of \(x\), \(y\) or \(z\), method marks can still be earned