Daily Practice

Higher Plus

6th July 1986

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

1
Probability Equation Questions3 marks
A bag holds 3 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 30 < x <= 40 has a frequency density of 3.5. How many values are in that class?
3
Bounds3 marks
x = 90 and y = 46, each correct to the nearest whole number. Work out the upper bound of x - y.
4
Algebraic Fractions3 marks
Simplify (x^2 - 15x + 56)/(x - 8).
5
Velocity Time Graphs2 marks
A train slows steadily from 16 m/s to rest in 4 seconds. Work out its deceleration.

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