Daily Practice - Higher Plus
Grades 8-9 - exam-stretch algebra, geometry and reasoning.
17th July 2017
- 1Probability Equation Questions3 marks
The probability of winning a game is 4/5. A player expects 20 wins. How many games did they play?
- 2Histograms3 marks
A histogram has four 10-wide classes from 0, with frequency densities 0.5, 1, 3, 2. Which class contains the median?
- 3Bounds3 marks
A block has mass 290 g (to the nearest 10 g) and volume 17 cm^3 (to the nearest cm^3). Work out the upper bound of its density, to 2 decimal places.
- 4Rearranging Harder Formulae3 marks
Make x the subject of 4x + 3 = y(x + 3).
- 5Direct and Inverse Proportion Depth3 marks
y is inversely proportional to x^2. When x = 4, y = 50. Work out y when x = 5.
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