Daily Practice · Higher Plus

Daily Practice - Higher Plus

7th July 1995

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

1
Probability Equation Questions3 marks
A bag holds 11 counters, r of them red. Two are taken without replacement and P(both red) = 36/55. Work out r.
2
Histograms3 marks
On a histogram the bar for 60 < x <= 65 has a frequency density of 0.4. How many values are in that class?
3
Surds3 marks
Rationalise the denominator of 12/sqrt(6), giving your answer in its simplest form.
4
Factorising Harder Quadratics3 marks
Solve 9x^2 - 30x + 25 = 0.
5
Velocity Time Graphs2 marks
A train slows steadily from 12 m/s to rest in 10 seconds. Work out its deceleration.

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