Foundation Plus
29th July 1972
- 1Ratio2 marks
Red and blue raffle tickets are in the ratio 3 : 7. There are 18 red raffle tickets. How many raffle tickets are there altogether?
- 2Bearings2 marks
A walker sets off due east. Write this direction as a three-figure bearing.
- 3Venn Diagrams3 marks
In a Venn diagram, 10 are in A only, 12 in B only, 8 in both and 2 in neither. Work out the probability a random one is in both.
- 4Capture Recapture3 marks
25 fish are marked and released. Later 12 are caught, of which 3 are marked. Estimate the population.
- 5Recurring Decimals to Fractions3 marks
Write the recurring decimal 0.888... 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 1972, including the monthly compilation PDF.