Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
20th April 2011
- 1Conditional Probability3 marks
12 students study Spanish and 8 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
- 2Cumulative Frequency2 marks
Four classes in order have frequencies 10, 4, 9, 4. Write down the cumulative frequency at the end of the third class.
- 3Standard Form3 marks
Work out (35 x 10^11) / (5 x 10^4). Give your answer in standard form.
- 4Solving Quadratics3 marks
Solve x^2 - 15x + 54 = 0.
- 5Speed and Density2 marks
A block has volume 150 cm^3 and density 4 g/cm^3. Work out its mass.
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