Daily Practice

Higher Plus

22nd November 1988

5 questions · 15 marks · Grades 8-9 · 51 question types in this band

1
Probability Equation Questions3 marks
A bag holds 8 red and n blue counters. The probability of taking a red is 4/5. Work out n.
2
Histograms3 marks
A histogram has four 20-wide classes from 0, with frequency densities 2, 1, 0.5, 3. Which class contains the median?
3
Surds3 marks
Expand and simplify (5 + sqrt(2))(5 - sqrt(2)).
4
Transforming Graphs y=f(x)3 marks
The point (-1, 0) lies on y = f(x). Write down its image on y = f(x) - 4.
5
Direct and Inverse Proportion Depth3 marks
y is inversely proportional to x^2. When x = 2, y = 50. Work out y when x = 5.

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