Higher
12th September 1975
- 1Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 6, y = 48. Work out y when x = 9.
- 2Sector Areas and Arc Lengths3 marks
A sector of a circle has radius 10 cm and angle 90°. Work out its area, to 1 decimal place.
- 3Conditional Probability3 marks
12 students study Spanish and 6 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
- 4Capture Recapture2 marks
A capture-recapture estimate is made of the beetle population of a woodland. State one assumption the method relies on.
- 5Standard Form2 marks
Work out (9 x 10^7) x (3 x 10^6). Give your answer in standard form.
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Any date always gives the same five questions, so a sheet can be set again or shared. All of September 1975, including the monthly compilation PDF.