Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
13th September 2009
- 1Direct and Inverse Proportion3 marks
y is inversely proportional to x. When x = 5, y = 50. Work out y when x = 10.
- 2Similar Shapes (Area and Volume)3 marks
Two similar shapes have lengths in the ratio 1 : 3. The smaller has an area of 20 cm^2. Work out the area of the larger.
- 3Conditional Probability3 marks
15 students study Spanish and 4 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
- 4Box Plots2 marks
A box plot has a minimum of 2 and a maximum of 39. Work out the range.
- 5Reverse Percentages3 marks
A bill is £648 including VAT at 20%. Work out the amount before VAT.
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