Daily Practice
Higher
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11th July 1978
- 1Circle Theorems2 marks
A, B and C are points on a circle with centre O. Angle AOC is 68°. Work out angle ABC, where B is on the major arc.
- 2Venn Diagrams3 marks
In a Venn diagram, 11 are in A only, 8 in B only, 9 in both and 1 in neither. Work out the probability a random one is in both.
- 3Capture Recapture3 marks
30 newts are marked and released. Later 18 are caught, of which 3 are marked. Estimate the population.
- 4Bounds2 marks
A mass is 3.2 kg, correct to 1 decimal place. Write down the lower bound.
- 5Expanding and Factorising Quadratics2 marks
Factorise x^2 - 64.
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Any date always gives the same five questions, so a sheet can be set again or shared. All of July 1978, including the monthly compilation PDF.