Higher
30th October 1971
- 1Box Plots2 marks
A box plot has minimum 13, lower quartile 17, median 27, upper quartile 31 and maximum 41. Work out the interquartile range.
- 2Recurring Decimals to Fractions3 marks
Write the recurring decimal 0.7676... as a fraction in its simplest form.
- 3Parallel and Perpendicular Lines3 marks
Work out the equation of the line parallel to y = -2x + 3 that passes through (2, -1).
- 4Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 3, y = 18. Work out y when x = 7.
- 5SOHCAHTOA (Trigonometry)3 marks
A right-angled triangle has sides 10 cm, 24 cm and 26 cm. Work out the angle opposite the 10 cm side, to 1 decimal place.
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Any date always gives the same five questions, so a sheet can be set again or shared. All of October 1971, including the monthly compilation PDF.