1MA0 Higher June 2016 Paper 1 Q7
*7 The diagram shows the plan of a floor.
Diagram NOT accurately drawn
Angie is going to varnish the floor.
She needs 1 litre of varnish for 5 m\(^2\) of floor.
There are 2.5 litres of varnish in each tin of varnish.
Angie has 3 tins of varnish.
Does she have enough varnish for all the floor?
You must show all your working. (5)
| Answer | Mark | Notes |
|---|---|---|
| Conclusion (supported) | 5 | M1 for finding the area of one rectangle which is not \(6 \times 10\) eg \(2 \times 2.5\) (=5) or \(4 \times 10\) (=40) or \(2.5 \times 6\) or \(5 \times 2\) M1 for a complete method to find the total area eg \(5 + 5 + 40\) or \(60 - 10\) (=50) M1 for a complete method to find the number of tins needed eg \(\text{``}50\text{''} \div 5 \div 2.5\) (=4) OR for a complete method to find the number of litres needed. eg \(\text{``}50\text{''} \div 5\) (=10) OR for a complete method to find the area covered by 3 tins eg \(3 \times 2.5 \times 5\) (=37.5) A1 for 50 (m\(^2\)) and 4 (tins needed) or for 10 (litres) and 7.5 (litres) or for 50(m\(^2\)) and 37.5(m\(^2\)) C1 (dep M2) for a conclusion supported by their calculations |