Numeracy Foundation November 2020 Unit 2 Q3
3. A large design is being painted on the floor of a playground.
The outline of the design is drawn to scale on a square grid.
The scale of the drawing is 1 cm represents 1 m.
The design will be painted with special paint.
Each tin of paint will cover 5 m2 and costs £32.70.
How many tins of paint will be needed to paint the design?
How much will the paint cost?
You must show all your working. [6]
Number of tins of paint = ……………
Cost of the paint = ……………
| Scheme | Marks | Comments | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Evidence of counting area Area in range 39 – 45 (cm2 or m2) | M1 A1 | Look at diagram | |||||||||
| Area ÷ 5(m2) | M1 | FT ‘their area’ ÷ 5(m2) | |||||||||
| Correct whole number of tins | A1 | Must be rounded up
| |||||||||
| (Cost of tins =) number of tins × (£)32.7(0) | M1 | FT ‘their derived number of tins’ × (£)32.7(0) | |||||||||
| Correct answer | A1 | FT only if whole numbers of tins × (£)32.7(0) If no marks or only 1st M1 awarded, award SC1 for sight of unsupported 8 or 9 tins SC2 for 8 tins and (£) 261.6(0) OR 9 tins and (£) 294.3(0) |