Daily Practice
Foundation Plus
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29th September 1979
- 1Probability Trees3 marks
A bag holds 4 red and 3 blue counters. One is taken, replaced, then another is taken. Work out the probability both are red.
- 2Capture Recapture3 marks
30 newts are marked and released. Later 60 are caught, of which 6 are marked. Estimate the population.
- 3Prime Factors, HCF and LCM3 marks
Write 84 as a product of its prime factors, using index form.
- 4Solving Equations3 marks
Solve 3(x + 9) = 57.
- 5Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 2, y = 16. Work out y when x = 6.
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Any date always gives the same five questions, so a sheet can be set again or shared. All of September 1979, including the monthly compilation PDF.