Daily Practice
Higher
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25th December 1968
- 1Conditional Probability3 marks
11 students study Spanish and 3 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, 10, 4, 4. Write down the cumulative frequency at the end of the third class.
- 3Reverse Percentages3 marks
A bill is £432 including VAT at 20%. Work out the amount before VAT.
- 4Solving Quadratics3 marks
Solve x^2 + 11x + 18 = 0.
- 5Speed and Density2 marks
A block has volume 135 cm^3 and density 3 g/cm^3. Work out its mass.
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Any date always gives the same five questions, so a sheet can be set again or shared. All of December 1968, including the monthly compilation PDF.