1MA0 Higher November 2013 Paper 1 Q10
*10 The diagram shows the floor of a village hall.
Diagram NOT accurately drawn
The caretaker needs to polish the floor.
One tin of polish normally costs £19
One tin of polish covers 12 m\(^2\) of floor.
There is a discount of 30% off the cost of the polish.
The caretaker has £130
Has the caretaker got enough money to buy the polish for the floor?
You must show all your working. (5)
| Answer | Mark | Notes |
|---|---|---|
| Not enough, needs £133 | 5 | M1 for splitting the shape (or showing recognition of the “absent” rectangle) and using a correct method to find the area of one shape M1 for a complete and correct method to find the total area M1 for a complete method to find 70% of 19 (= 13.3) or 70% of their total cost or 70% of their area A1 114(m\(^2\)) and (£)133 or 114(m\(^2\)) and (£)13.3(0) and 108(m\(^2\)) C1 (dep on M2) for a conclusion supported by their calculations OR M1 for a complete method for the number of tins required for one section of the area of the floor M1 for a complete method to find the number of tins for the whole floor M1 for a complete method to find 70% of their total number of tins and multiply by 19 A1 (£)133 C1 (dep on M2) for a conclusion supported by their calculations |