Higher Plus
3rd November 1965
- 1Direct and Inverse Proportion Depth3 marks
y is directly proportional to sqrt(x). When x = 9, y = 9. Work out y when x = 36.
- 2The Cosine Rule3 marks
A triangle has sides 11 cm, 9 cm and 6 cm. Work out the angle opposite the 11 cm side, to 1 decimal place.
- 3Probability Equation Questions3 marks
A bag holds 2 red and n blue counters. The probability of taking a red is 2/7. Work out n.
- 4Histograms3 marks
A histogram has four 20-wide classes from 0, with frequency densities 2, 0.5, 1, 3. Which class contains the median?
- 5Bounds3 marks
A rectangle is 15 cm by 29 cm, each correct to the nearest cm. Work out the upper bound of its area.
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Any date always gives the same five questions, so a sheet can be set again or shared. All of November 1965, including the monthly compilation PDF.