Foundation Plus
30th March 1978
- 1Best Buy Questions3 marks
A pack of 7 sponges costs £2.10. A pack of 28 costs £6.72. Which pack is better value?
- 2Spheres and Cones3 marks
A sphere has radius 12 cm. Work out its volume, leaving your answer in terms of pi.
- 3Venn Diagrams3 marks
In a Venn diagram, 8 are in A only, 3 in B only, 8 in both and 5 in neither. Work out the probability a random one is in both.
- 4Scatter Graphs2 marks
A scatter graph plots the number of pages in a book and its price. What type of correlation would you expect?
- 5Recurring Decimals to Fractions3 marks
Write the recurring decimal 0.666... 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 March 1978, including the monthly compilation PDF.