Foundation Plus
20th September 1986
- 1Ratio2 marks
Red and blue stickers are in the ratio 4 : 7. There are 44 red stickers. How many stickers are there altogether?
- 2Spheres and Cones3 marks
A sphere has radius 3 cm. Work out its volume, leaving your answer in terms of pi.
- 3Venn Diagrams3 marks
In a Venn diagram, 18 are in A only, 11 in B only, 10 in both and 3 in neither. Work out the probability a random one is in both.
- 4Box Plots2 marks
A box plot has minimum 7, lower quartile 13, median 18, upper quartile 21 and maximum 23. Work out the interquartile range.
- 5Recurring Decimals to Fractions3 marks
Write the recurring decimal 0.444... as a fraction in its simplest form.
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Any date always gives the same five questions, so a sheet can be set again or shared. All of September 1986, including the monthly compilation PDF.