Daily Practice
Higher
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28th August 1977
- 1Conditional Probability3 marks
22 students study Spanish and 12 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
- 2Box Plots2 marks
A box plot has a minimum of 9 and a maximum of 29. Work out the range.
- 3Reverse Percentages3 marks
A bill is £360 including VAT at 20%. Work out the amount before VAT.
- 4Solving Quadratics3 marks
Solve x^2 - 11x + 30 = 0.
- 5Direct and Inverse Proportion3 marks
y is inversely proportional to x. When x = 4, y = 24. Work out y when x = 12.
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Any date always gives the same five questions, so a sheet can be set again or shared. All of August 1977, including the monthly compilation PDF.