Higher
23rd April 1985
- 1Similar Shapes (Area and Volume)3 marks
Two similar solids have lengths in the ratio 1 : 4. The larger has a volume of 2432 cm^3. Work out the volume of the smaller.
- 2Probability Trees3 marks
A bag holds 4 red and 3 blue counters. Two are taken without replacement. Work out the probability both are red.
- 3Capture Recapture3 marks
25 beetles are marked and released. Later 63 are caught, of which 7 are marked. Estimate the population.
- 4Standard Form3 marks
Work out (36 x 10^10) / (6 x 10^2). Give your answer in standard form.
- 5Drawing Other Graphs: Cubic/Reciprocal2 marks
For the curve y = 2/x, work out y when x = -2, and write down the equation of its vertical asymptote.
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Any date always gives the same five questions, so a sheet can be set again or shared. All of April 1985, including the monthly compilation PDF.