Daily Practice
Foundation Plus
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12th August 1971
- 1Probability Trees3 marks
A bag holds 7 red and 2 blue counters. One is taken, replaced, then another is taken. Work out the probability both are red.
- 2Capture Recapture3 marks
40 newts are marked and released. Later 21 are caught, of which 7 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 2(x + 8) = 40.
- 5Speed and Density2 marks
A block has volume 30 cm^3 and density 8 g/cm^3. Work out its mass.
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Any date always gives the same five questions, so a sheet can be set again or shared. All of August 1971, including the monthly compilation PDF.