1MA0 Foundation November 2016 Paper 1 Q4
4 Here is a price list in a school shop.
| Price list | |
|---|---|
| pens | 30p each |
| pencils | 20p each |
| rulers | 45p each |
| erasers | 10p each |
Beth wants to spend exactly 75p in the shop.
(a) How many different ways are there for Beth to spend exactly 75p?
You must show how you got your answer. (2)
You must show how you got your answer. (2)
Alex buys 7 pens and 3 rulers.
He pays with a £5 note.
(b) How much change should Alex get? (3)
Chris buys \(y\) pencils.
(c) Write down an expression, in terms of \(y\), for the total cost of the pencils in pence. (1)
| Working | Answer | Mark | Notes |
|---|---|---|---|
| ruler, pen ruler, pencil, eraser ruler, 3 erasers | 3 | 2 | M1 for at least one correct way listed in words or as costs or for answer of 3 A1 for 3 and the three correct ways listed in words or as costs |
| Working | Answer | Mark | Notes |
|---|---|---|---|
| \(7 \times 30 + 3 \times 45 = 3.45\) \(5.00 - 3.45 =\) | 1.55 | 3 | M1 for \(7 \times 30\) (= 210) or \(3 \times 45\) (= 135) M1 (dep on previous M1) for £5 – their total of \(7 \times 30\) and \(3 \times 45\) or digits 155 seen A1 for 1.55 cao B1 SC for 4.25 |
| Answer | Mark | Notes |
|---|---|---|
| \(20y\) | 1 | B1 for \(20y\) oe |