Higher
19th July 1990
- 1Repeated Percentage Change3 marks
A town's population is 10000 and grows by 4% each year. Work out the population after 2 years, to the nearest whole number.
- 2Sector Areas and Arc Lengths3 marks
A sector of a circle has radius 11 cm and angle 120°. Work out its area, to 1 decimal place.
- 3Conditional Probability3 marks
9 students study Spanish and 4 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
- 4Histograms2 marks
A histogram class is 20 units wide and contains 30 values. Work out the frequency density.
- 5Reverse Percentages3 marks
A bill is £120 including VAT at 20%. Work out the amount before VAT.
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Any date always gives the same five questions, so a sheet can be set again or shared. All of July 1990, including the monthly compilation PDF.