Daily Practice

Higher Plus

22nd July 1960

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

1
Probability Equation Questions3 marks
A bag holds 4 red and n blue counters. The probability of taking a red is 4/11. Work out n.
2
Histograms3 marks
On a histogram the bar for 30 < x <= 50 has a frequency density of 1.5. How many values are in that class?
3
Surds3 marks
Rationalise the denominator of 30/sqrt(6), giving your answer in its simplest form.
4
Proof2 marks
In an algebraic proof, how would you write an odd number in terms of an integer n?
5
Velocity Time Graphs2 marks
A train slows steadily from 39 m/s to rest in 10 seconds. Work out its deceleration.

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