Daily Practice

Higher Plus

29th October 1964

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 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
Simplify sqrt(48) + sqrt(75), giving your answer in the form a sqrt(b).
4
Quadratic Simultaneous Equations3 marks
Solve x^2 + y^2 = 289 and y = x + 7 simultaneously.
5
Velocity Time Graphs2 marks
A train slows steadily from 35 m/s to rest in 5 seconds. Work out its deceleration.

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