Numeracy Higher June 2017 Unit 2 Q2
2. Sanjay stacks three boxes in a pile.
The heights of the boxes are 25 cm, 36 cm and 47 cm.
They are all measured correct to the nearest centimetre.
What is the greatest possible height of the stack of the three boxes? [2]
Greatest possible height of the stack of three boxes is …………………… cm
| Scheme | Marks | Comments |
|---|---|---|
| Sight of any 2 of: 25.5, 36.5, 47.5 OR sight of 25 + 36 + 47 + 1.5 or equivalent | B1 | Do not accept ‘.49’ instead of ‘.5’, but allow ‘.49 recurring’ |
| Greatest 109.5 (cm) or 109.499999... (cm) | B1 | CAO, must be from correct working, or unsupported Allow an answer of 110(cm) from sight of 109.5(cm) Do not accept 109.49 (cm) |