Higher Plus
3rd October 1956
- 1Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^3. When x = 3, y = 162. Work out y when x = 4.
- 2The Cosine Rule3 marks
A triangle has sides of 5 cm and 17 cm with an angle of 31° between them. Work out the third side, to 1 decimal place.
- 3Conditional Probability3 marks
A bag holds 6 red, 3 blue and 2 green counters. Two are taken without replacement. Given neither is green, what is the probability both are red?
- 4Histograms3 marks
On a histogram the bar for 50 < x <= 60 has a frequency density of 0.4. How many values are in that class?
- 5Bounds3 marks
A rectangle is 20 cm by 9 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 October 1956, including the monthly compilation PDF.