Daily Practice
Higher
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12th October 1971
- 1Capture Recapture3 marks
55 beetles are marked and released. Later 54 are caught, of which 6 are marked. Estimate the population.
- 2Bounds2 marks
A mass is 4.8 kg, correct to 1 decimal place. Write down the upper bound.
- 3Expanding and Factorising Quadratics2 marks
Factorise x^2 - 4.
- 4Writing a Ratio as a Fraction or Linear Function2 marks
x : y = 2 : 5. Write y in terms of x.
- 5Circle Theorems2 marks
A, B and C are points on a circle with centre O. Angle AOC is 92°. Work out angle ABC, where B is on the major arc.
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Any date always gives the same five questions, so a sheet can be set again or shared. All of October 1971, including the monthly compilation PDF.