Foundation Plus
5th October 1989
- 1Angles in Polygons2 marks
Work out the size of one exterior angle of a regular nonagon.
- 2Venn Diagrams3 marks
In a Venn diagram, 13 are in A only, 20 in B only, 8 in both and 12 in neither. Work out the probability a random one is in A or B.
- 3Box Plots2 marks
A box plot has minimum 10, lower quartile 17, median 26, upper quartile 33 and maximum 43. Work out the interquartile range.
- 4Reverse Percentages3 marks
After a decrease of 10%, a price is £36. Work out the price before the change.
- 5Forming and Solving Equations3 marks
3 consecutive whole numbers add up to 36. 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 October 1989, including the monthly compilation PDF.