Higher
22nd December 1977
- 1The Product Rule for Counting3 marks
A code is 3 letters (A to Z) followed by 2 digits (0 to 9), and repeats are allowed. How many codes are possible?
- 2Drawing Quadratic Graphs2 marks
For the curve y = x^2 + 5x - 11, work out y when x = 3.
- 3Repeated Percentage Change3 marks
A town's population is 20500 and grows by 4% each year. Work out the population after 6 years, to the nearest whole number.
- 4Sector Areas and Arc Lengths3 marks
A sector of a circle has radius 13 cm and angle 30°. Work out its area, to 1 decimal place.
- 5Conditional Probability3 marks
22 students study Spanish and 8 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 1977, including the monthly compilation PDF.