Foundation June 2019 Paper 3 Q17
17 The accurate scale diagram shows a telephone mast and a box.
The box has a real width of 1.5 metres.
Find an estimate for the real height, in metres, of the telephone mast. (2)
| Answer | Mark | Mark scheme |
|---|---|---|
| 9 | M1 | for a method to find the scaling factor eg \(\text{``}10.8\text{''} \div \text{``}1.8\text{''}\ (= 6)\) or \(\text{``}1.8\text{''} \div 1.5\ (=1.2)\) or \(1.5 \div \text{``}1.8\text{''}\ (=0.833..)\) or a sf given from 5.5 to 6.5 or from 1.06 to 1.4 or from 0.75 to 0.94 eg used with 1.5 |
| A1 | accept an answer in the range 8 to 10 |
Additional guidance
Could be shown on the diagram by appropriate working eg 6 steps
Allow 10.6 to 11.0 and 1.6 to 2.0 for their measured lengths.