1MA0 Foundation November 2016 Paper 1 Q23
23 The diagram shows a path around a pond.
Diagram NOT accurately drawn
The pond is in the shape of a rectangle with length 7 m and width 4 m.
The path is 3 m wide.
Ali is going to cover the path with gravel.
One bag of gravel will cover 10 m2 of the path.
How many bags of gravel does Ali need to buy?
You must show your working. (4)
| Working | Answer | Mark | Notes |
|---|---|---|---|
| \((7 + 3 + 3) \times (4 + 3 + 3) - 7 \times 4 = 102\) or \(2 \times 7 \times 3 + 2 \times 4 \times 3 + 4 \times 3 \times 3 = 102\) | 11 | 4 | M1 for a correct method to find the area of one appropriate rectangle M1 for a complete method to find the area of the path M1 (dep on M1) for \(\text{``}102\text{''} \div 10\) A1 cao |