Daily Practice

Higher Plus

19th September 1958

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

1
Probability Equation Questions3 marks
A bag holds 12 counters, r of them red. Two are taken without replacement and P(both red) = 1/66. Work out r.
2
Histograms3 marks
On a histogram the bar for 10 < x <= 20 has a frequency density of 2.4. How many values are in that class?
3
Surds3 marks
Rationalise the denominator of 60/sqrt(6), giving your answer in its simplest form.
4
The Nth Term of a Quadratic Sequence3 marks
Work out the nth term of the quadratic sequence -3, -2, 3, 12, ...
5
Velocity Time Graphs2 marks
A train slows steadily from 33 m/s to rest in 10 seconds. Work out its deceleration.

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