Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
16th July 2008
- 1Conditional Probability3 marks
18 students study Spanish and 5 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 11, 12, 10, 9. Write down the cumulative frequency at the end of the third class.
- 3Recurring Decimals to Fractions3 marks
Write the recurring decimal 0.7474... as a fraction in its simplest form.
- 4Solving Quadratics3 marks
Solve x^2 - 14x + 49 = 0.
- 5Speed and Density2 marks
A block has volume 100 cm^3 and density 2.5 g/cm^3. Work out its mass.
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