Daily Practice

Higher Plus

14th November 1961

5 questions · 13 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 2/5. Work out n.
2
Histograms3 marks
On a histogram the bar for 50 < x <= 55 has a frequency density of 1.2. How many values are in that class?
3
Surds3 marks
Expand and simplify (6 + sqrt(11))(6 - sqrt(11)).
4
The Nth Term of a Quadratic Sequence2 marks
A quadratic sequence starts -2, 4, 14, 28. Work out the second difference, and the coefficient of n^2.
5
Velocity Time Graphs2 marks
A train slows steadily from 21 m/s to rest in 8 seconds. Work out its deceleration.

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