Daily Practice

Higher Plus

24th November 1982

5 questions · 13 marks · Grades 8-9 · 51 question types in this band

1
Probability Equation Questions3 marks
A bag holds 6 red and n blue counters. The probability of taking a red is 1/2. Work out n.
2
Histograms3 marks
On a histogram the bar for 50 < x <= 60 has a frequency density of 3.5. How many values are in that class?
3
Bounds3 marks
A rectangle is 9 cm by 8 cm, each correct to the nearest cm. Work out the upper bound of its area.
4
Proof2 marks
In an algebraic proof, how would you write three consecutive integers in terms of an integer n?
5
Velocity Time Graphs2 marks
A train slows steadily from 34 m/s to rest in 4 seconds. Work out its deceleration.

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