Higher
28th March 1991
- 1Repeated Percentage Change3 marks
A town's population is 6500 and grows by 8% each year. Work out the population after 3 years, to the nearest whole number.
- 2Perpendicular Lines and the equation of a tangent2 marks
A line has gradient -3. Work out the gradient of a line perpendicular to it.
- 3Conditional Probability3 marks
25 students study Spanish and 7 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
- 4Histograms2 marks
A histogram class is 20 units wide and contains 10 values. Work out the frequency density.
- 5Standard Form2 marks
Work out (6 x 10^3) x (8 x 10^-4). 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 March 1991, including the monthly compilation PDF.