Higher Plus
29th January 1978
- 1Velocity Time Graphs2 marks
A train slows steadily from 34 m/s to rest in 8 seconds. Work out its deceleration.
- 2The Cosine Rule3 marks
A triangle has sides 18 cm, 15 cm and 7 cm. Work out the angle opposite the 18 cm side, to 1 decimal place.
- 3Probability Equation Questions3 marks
A bag holds 7 red and n blue counters. The probability of taking a red is 7/10. Work out n.
- 4Histograms3 marks
On a histogram the bar for 40 < x <= 60 has a frequency density of 0.4. How many values are in that class?
- 5Bounds3 marks
x = 113 and y = 82, each correct to the nearest whole number. Work out the upper bound of x - y.
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Any date always gives the same five questions, so a sheet can be set again or shared. All of January 1978, including the monthly compilation PDF.