Higher
31st October 1967
- 1Similar Shapes (Area and Volume)3 marks
Two similar solids have lengths in the ratio 1 : 2. The larger has a volume of 144 cm^3. Work out the volume of the smaller.
- 2Probability Trees3 marks
A bag holds 9 red and 2 blue counters. Two are taken without replacement. Work out the probability both are red.
- 3Capture Recapture3 marks
55 voles are marked and released. Later 21 are caught, of which 3 are marked. Estimate the population.
- 4Surds2 marks
Write sqrt(18) in the form a sqrt(b), where b is as small as possible.
- 5Drawing Other Graphs: Cubic/Reciprocal2 marks
For the curve y = -3/x, work out y when x = -1, 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 October 1967, including the monthly compilation PDF.