Higher
12th February 1972
- 1Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 5, y = 50. Work out y when x = 8.
- 2Similar Shapes (Area and Volume)3 marks
Two similar shapes have lengths in the ratio 1 : 5. The smaller has an area of 7 cm^2. Work out the area of the larger.
- 3Conditional Probability3 marks
22 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 7, lower quartile 12, median 14, upper quartile 17 and maximum 20. Work out the interquartile range.
- 5Reverse Percentages3 marks
A bill is £360 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 February 1972, including the monthly compilation PDF.