Higher
24th September 1975
- 1Speed and Density2 marks
A block has volume 130 cm^3 and density 7.5 g/cm^3. Work out its mass.
- 2Perpendicular Lines and the equation of a tangent2 marks
A line has gradient 4. Work out the gradient of a line perpendicular to it.
- 3Conditional Probability3 marks
31 students study Spanish and 12 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
- 4Cumulative Frequency2 marks
Four classes in order have frequencies 9, 5, 7, 6. Write down the cumulative frequency at the end of the third class.
- 5Reverse Percentages3 marks
A bill is £768 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 September 1975, including the monthly compilation PDF.