Daily Practice

Higher Plus

4th June 1986

5 questions · 14 marks · Grades 8-9 · 51 question types in this band

1
Velocity Time Graphs2 marks
A train slows steadily from 31 m/s to rest in 4 seconds. Work out its deceleration.
2
Finding the Area of Any Triangle3 marks
A triangle has sides of 16 cm and 15 cm and an area of 84.85 cm^2. Work out the acute angle between those two sides, to the nearest degree.
3
Probability Equation Questions3 marks
A bag holds 9 counters, r of them red. Two are taken without replacement and P(both red) = 7/12. Work out r.
4
Histograms3 marks
On a histogram the bar for 50 < x <= 60 has a frequency density of 2.4. How many values are in that class?
5
Bounds3 marks
A rectangle is 16 cm by 8 cm, each correct to the nearest cm. Work out the upper bound of its area.

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