Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
27th February 2008
- 1Speed and Density2 marks
A block has volume 115 cm^3 and density 4 g/cm^3. Work out its mass.
- 2Sector Areas and Arc Lengths3 marks
A sector of a circle has radius 9 cm and angle 30°. Work out its area, to 1 decimal place.
- 3Conditional Probability3 marks
17 students study Spanish and 8 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
- 4Cumulative Frequency2 marks
Four classes in order have frequencies 4, 8, 3, 10. Write down the cumulative frequency at the end of the third class.
- 5Surds2 marks
Write sqrt(45) in the form a sqrt(b), where b is as small as possible.
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