Higher
21st January 1967
- 1Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 6, y = 216. Work out y when x = 5.
- 2Perpendicular Lines and the equation of a tangent2 marks
A line has gradient 3. Work out the gradient of a line perpendicular to it.
- 3Conditional Probability3 marks
16 students study Spanish and 9 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
- 4Box Plots2 marks
A box plot has minimum 10, lower quartile 14, median 20, upper quartile 27 and maximum 33. Work out the interquartile range.
- 5Reverse Percentages3 marks
A bill is £408 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 January 1967, including the monthly compilation PDF.