Higher
30th November 1985
- 1Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 3, y = 54. Work out y when x = 8.
- 2Similar Shapes (Area and Volume)3 marks
Two similar shapes have lengths in the ratio 1 : 2. The smaller has an area of 11 cm^2. Work out the area of the larger.
- 3Conditional Probability3 marks
25 students study Spanish and 12 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 13, median 22, upper quartile 32 and maximum 37. Work out the interquartile range.
- 5Fractional and Negative Indices3 marks
Work out 16^(3/2).
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Any date always gives the same five questions, so a sheet can be set again or shared. All of November 1985, including the monthly compilation PDF.