Foundation Plus
29th December 1966
- 1Angles in Polygons2 marks
Work out the size of one exterior angle of a regular nonagon.
- 2Venn Diagrams3 marks
In a Venn diagram, 16 are in A only, 12 in B only, 9 in both and 9 in neither. Work out the probability a random one is in A or B.
- 3Box Plots2 marks
A box plot has minimum 6, lower quartile 13, median 23, upper quartile 31 and maximum 41. Work out the interquartile range.
- 4Reverse Percentages3 marks
After an increase of 20%, a price is £648. Work out the price before the change.
- 5Forming and Solving Equations3 marks
4 consecutive whole numbers add up to 66. 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 December 1966, including the monthly compilation PDF.