Foundation Plus
5th August 1987
- 1Angles in Polygons2 marks
Work out the size of one exterior angle of a regular nonagon.
- 2Venn Diagrams3 marks
In a Venn diagram, 17 are in A only, 15 in B only, 3 in both and 4 in neither. Work out the probability a random one is in A or B.
- 3Box Plots2 marks
A box plot has minimum 14, lower quartile 19, median 22, upper quartile 24 and maximum 27. Work out the interquartile range.
- 4Reverse Percentages3 marks
After an increase of 40%, a price is £140. Work out the price before the change.
- 5Forming and Solving Equations3 marks
5 consecutive whole numbers add up to 195. Work out the smallest of them.
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Any date always gives the same five questions, so a sheet can be set again or shared. All of August 1987, including the monthly compilation PDF.