Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
28th December 2011
- 1Conditional Probability3 marks
20 students study Spanish and 9 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 8, 4, 12, 11. Write down the cumulative frequency at the end of the third class.
- 3Reverse Percentages3 marks
A bill is £816 including VAT at 20%. Work out the amount before VAT.
- 4Inequalities on Graphs3 marks
Does the point (0, 11) satisfy y > 3x + 3?
- 5Speed and Density2 marks
A block has volume 120 cm^3 and density 3 g/cm^3. Work out its mass.
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