Foundation Plus
24th April 1980
- 1Best Buy Questions3 marks
A pack of 6 batteries costs £1.80. A pack of 24 costs £6.72. Which pack is better value?
- 2Spheres and Cones3 marks
A sphere has radius 6 cm. Work out its volume, leaving your answer in terms of pi.
- 3Venn Diagrams3 marks
In a Venn diagram, 10 are in A only, 11 in B only, 9 in both and 7 in neither. Work out the probability a random one is in both.
- 4Scatter Graphs3 marks
A line of best fit on a scatter graph has equation y = 4x + 26. Use it to estimate y when x = 3.
- 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 April 1980, including the monthly compilation PDF.