Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
17th December 2008
- 1Speed and Density2 marks
A block has volume 95 cm^3 and density 2.5 g/cm^3. Work out its mass.
- 2Spheres and Cones3 marks
A sphere has radius 15 cm. Work out its volume, leaving your answer in terms of pi.
- 3Probability Trees3 marks
3 of 9 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
- 4Cumulative Frequency2 marks
Four classes in order have frequencies 4, 10, 3, 6. Write down the cumulative frequency at the end of the third class.
- 5Recurring Decimals to Fractions3 marks
Write the recurring decimal 0.4949... as a fraction in its simplest form.
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