Daily Practice

Higher Plus

19th November 1986

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

1
Velocity Time Graphs2 marks
A train slows steadily from 21 m/s to rest in 5 seconds. Work out its deceleration.
2
The Sine Rule3 marks
In triangle ABC, angle A is 71°, side a is 14 cm and side b is 7 cm. Work out the acute angle B, to 1 decimal place.
3
Conditional Probability3 marks
A bag holds 3 red and 11 blue counters. Two are taken without replacement. Given the first was red, what is the probability the second is blue?
4
Histograms3 marks
On a histogram the bar for 20 < x <= 40 has a frequency density of 2.4. How many values are in that class?
5
Bounds3 marks
A rectangle is 16 cm by 6 cm, each correct to the nearest cm. Work out the upper bound of its area.

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