Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
13th April 2013
- 1Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 3, y = 36. Work out y when x = 5.
- 2Sector Areas and Arc Lengths3 marks
A sector of a circle has radius 14 cm and angle 45°. Work out its area, to 1 decimal place.
- 3Conditional Probability3 marks
19 students study Spanish and 7 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 minimum 15, lower quartile 23, median 27, upper quartile 30 and maximum 38. Work out the interquartile range.
- 5Standard Form2 marks
Work out (8 x 10^5) x (5 x 10^6). Give your answer in standard form.
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