Foundation November 2021 Paper 3 Q12
12 A dolphin and a whale are drawn to scale.
The actual length of the dolphin is 3 metres.
Estimate the actual length of the whale.
You must show your working. [2 marks]
| Answer | Mark | Comments |
|---|---|---|
| 2 (cm) and 8 (cm) seen or [3.54, 4.56] or \(3 \div\) [1.8, 2.2] or [1.36, 1.67] or [1.8, 2.2] \(\div\ 3\) or [0.6, 0.74] | M1 | each \(\pm\) 2 mm implied by whale divided into four sections or \(\dfrac{1}{4}\) of the whale oe |
| [10.6, 13.7] | A1 | working for M1 must be seen SC1 [10.6, 13.7] with no or insufficient working |
Additional guidance
| 2:8 and 3:12 on answer line | M1A0 |