Foundation Plus
10th July 1986
- 1Best Buy Questions3 marks
A pack of 8 batteries costs £4.00. A pack of 24 costs £10.80. Which pack is better value?
- 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, 10 are in A only, 18 in B only, 2 in both and 3 in neither. Work out the probability a random one is in both.
- 4Frequency Trees3 marks
140 people were surveyed. 50 were adults, of whom 5 said yes. 40 of the children said yes. How many said yes altogether?
- 5Recurring Decimals to Fractions3 marks
Write the recurring decimal 0.333... 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 July 1986, including the monthly compilation PDF.