Daily Practice - Higher Plus
Grades 8-9 - exam-stretch algebra, geometry and reasoning.
16th December 2011
- 1Probability Equation Questions3 marks
The probability of winning a game is 4/5. A player expects 96 wins. How many games did they play?
- 2Histograms3 marks
A histogram has four 10-wide classes from 0, with frequency densities 0.5, 2, 3, 1. Which class contains the median?
- 3Surds3 marks
Rationalise the denominator of 12/sqrt(2), giving your answer in its simplest form.
- 4Rearranging Harder Formulae3 marks
Make x the subject of 7x + 8 = y(x + 8).
- 5Direct and Inverse Proportion Depth3 marks
y is inversely proportional to x^2. When x = 5, y = 9. Work out y when x = 3.
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