Higher
3rd September 1981
- 1Drawing Other Graphs: Cubic/Reciprocal2 marks
For the curve y = 2/x, work out y when x = 1, and write down the equation of its vertical asymptote.
- 2Repeated Percentage Change3 marks
A town's population is 9500 and grows by 6% each year. Work out the population after 3 years, to the nearest whole number.
- 3Similar Shapes (Area and Volume)3 marks
Two similar solids have lengths in the ratio 1 : 3. The larger has a volume of 216 cm^3. Work out the volume of the smaller.
- 4Probability Trees3 marks
A bag holds 4 red and 5 blue counters. Two are taken without replacement. Work out the probability both are red.
- 5Histograms2 marks
A histogram class is 4 units wide and contains 6 values. Work out the frequency density.
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Any date always gives the same five questions, so a sheet can be set again or shared. All of September 1981, including the monthly compilation PDF.