Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
- 1Probability Trees3 marks
2 of 5 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
- 2Cumulative Frequency2 marks
Four classes in order have frequencies 12, 12, 5, 9. Write down the cumulative frequency at the end of the third class.
- 3Recurring Decimals to Fractions3 marks
Write the recurring decimal 0.888... as a fraction in its simplest form.
- 4Simultaneous Equations3 marks
4 teas and 1 cake cost £6.60. 1 tea and 4 cakes cost £8.40. Find the price of a tea.
- 5Speed and Density2 marks
A block has volume 170 cm^3 and density 7.5 g/cm^3. Work out its mass.
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