Daily Practice

Higher Plus

8th October 1968

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

1
Probability Equation Questions3 marks
A bag holds 2 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 40 < x <= 50 has a frequency density of 2.4. How many values are in that class?
3
Surds3 marks
Expand and simplify (3 + sqrt(2))(3 - sqrt(2)).
4
The Nth Term of a Quadratic Sequence3 marks
Work out the nth term of the quadratic sequence -5, -6, -5, -2, ...
5
Velocity Time Graphs2 marks
A train slows steadily from 19 m/s to rest in 5 seconds. Work out its deceleration.

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