Daily Practice · Higher Plus

Daily Practice - Higher Plus

29th June 1993

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

1
Probability Equation Questions3 marks
A bag holds 6 red and n blue counters. The probability of taking a red is 6/13. Work out n.
2
Histograms3 marks
A histogram has four 20-wide classes from 0, with frequency densities 0.5, 3, 2, 1. Which class contains the median?
3
Surds3 marks
Expand and simplify (7 + sqrt(2))(7 - sqrt(2)).
4
Algebraic Fractions3 marks
Simplify (x^2 - 12x + 32)/(x - 8).
5
Direct and Inverse Proportion Depth3 marks
y is inversely proportional to x^2. When x = 3, y = 48. Work out y when x = 4.

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