Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
27th September 2017
- 1Conditional Probability3 marks
16 students study Spanish and 4 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 4, 5, 7, 3. Write down the cumulative frequency at the end of the third class.
- 3Standard Form2 marks
Work out (9 x 10^7) x (5 x 10^-6). Give your answer in standard form.
- 4Solving Quadratics3 marks
Solve x^2 - 16x + 63 = 0.
- 5Speed and Density2 marks
A block has volume 165 cm^3 and density 7.5 g/cm^3. Work out its mass.
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