Foundation November 2024 Paper 3 Q11
11 Here is a diagram.
(a) Complete this diagram. [1 mark]
(b) Complete this diagram. [2 marks]
(c) 
Work out the value of \(b\). [3 marks]
| Answer | Mark | Comments |
|---|---|---|
| 21.5 in second circle and 29.5 in third circle | B1 | oe |
| Answer | Mark | Comments |
|---|---|---|
| 14 in circle | B1 | |
| \(+\,9\) in box | B1ft | ft their 14 |
Additional guidance
| Accept other operators eg 14 in circle with \(\times\,\dfrac{14}{5}\) (oe) | B1B1 |
| 36 in circle \(+\,31\) in box | B0B1ft |
| 36 in circle \(+\,9\) in box | B0B1 |
| Answer | Mark | Comments |
|---|---|---|
| \(a + 3a = 28\) or \(4a = 28\) or \(28 + 2a = b\) or \(6a = b\) or \(28 \div 4\) | M1 | oe |
| 7 | A1 | may be seen on diagram |
| 42 | B1ft | ft \(28 + 2 \times\) their 7 or \(6 \times\) their 7 |
Additional guidance
| Answer 42 | M1A1B1 |
| \(4a = 28\) followed by \(a = 24\) and \(b = 76\) or \(b = 144\) | M1A0B1ft |
| \(a = 24\) (no working) and \(b = 76\) or \(b = 144\) | M0A0B1ft |
| Do not accept \(a + 3a = 28 + 2a = b\) for \(a + 3a = 28\) or \(28 + 2a = b\) | M0 |