Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
25th October 2022
- 1Probability Trees3 marks
2 of 9 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
- 2Capture Recapture3 marks
30 voles are marked and released. Later 48 are caught, of which 4 are marked. Estimate the population.
- 3Recurring Decimals to Fractions3 marks
Write the recurring decimal 0.7070... as a fraction in its simplest form.
- 4Simultaneous Equations3 marks
4 teas and 4 cakes cost £18.20. 4 teas and 5 cakes cost £21.05. Find the price of a tea.
- 5Writing a Ratio as a Fraction or Linear Function2 marks
x : y = 3 : 8. Write y in terms of x.
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