Higher
26th December 1990
- 1The Product Rule for Counting3 marks
A code is 2 letters (A to Z) followed by 3 digits (0 to 9), and repeats are allowed. How many codes are possible?
- 2Drawing Quadratic Graphs2 marks
For the curve y = x^2 - x + 4, work out y when x = -3.
- 3Speed and Density2 marks
A block has volume 55 cm^3 and density 7.5 g/cm^3. Work out its mass.
- 4Sector Areas and Arc Lengths3 marks
A sector of a circle has radius 9 cm and angle 45°. Work out its area, to 1 decimal place.
- 5Conditional Probability3 marks
20 students study Spanish and 4 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
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Any date always gives the same five questions, so a sheet can be set again or shared. All of December 1990, including the monthly compilation PDF.