Higher
27th December 1985
- 1Capture Recapture2 marks
A capture-recapture estimate is made of the ladybird population of a garden. State one assumption the method relies on.
- 2Recurring Decimals to Fractions3 marks
Write the recurring decimal 0.666... as a fraction in its simplest form.
- 3Inequalities on Graphs2 marks
A region is defined by y <= -4x + 2. Should the boundary line be solid or dashed, and why?
- 4Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 7, y = 84. Work out y when x = 9.
- 5Spheres and Cones3 marks
A cone has base radius 7 cm and vertical height 15 cm. Work out its volume, leaving your answer in terms of pi.
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Any date always gives the same five questions, so a sheet can be set again or shared. All of December 1985, including the monthly compilation PDF.