Numeracy Higher June 2019 Unit 2 Q1
1. WALES V IRELAND
Wales are to play Ireland in an international rugby match.
The rugby pitch at the stadium is measured.
On the diagram below, each measurement is given correct to the nearest 10 centimetres.
Diagram not drawn to scale
What is the least possible length of AB?
Give your answer in metres.
You must show all your working. [3]
| Scheme | Marks | Comments |
|---|---|---|
| Sight of 9.95 (m) or 99.95(m) or 995 (cm) or 9995 (cm) | B1 | If units are given they must be correct |
| (Least length) 9.95 + 99.95 + 9.95 or equivalent in cm | M1 | FT ‘their least measurements’ x and y, provided 9.9 (m) ≤ x <10(m) and 99.9 (m) ≤ y <100(m) as appropriate |
| 119.85 (m) | A1 | CAO Award all 3 marks for a correct response If no marks, award SC1 for an answer of 118.5(m) or 119.985(m) or (9.95 + 9.95 + 99.5 =) 119.4(m) |
Alternative
1. Alternative method:
| Scheme | Marks | Comments |
|---|---|---|
| 100 + 10 + 10 – 3 × 0.05 or equivalent in cm 119.85 (m) | M2 A1 | M1 for sight of - 5 cm or -0.05 (m) used CAO If no marks, award SC1 for an answer of 119.7.(m) |