Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
7th March 2025
- 1Probability Trees3 marks
3 of 6 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
- 2Capture Recapture2 marks
A capture-recapture estimate is made of the moth population of a meadow. State one assumption the method relies on.
- 3Reverse Percentages3 marks
A bill is £288 including VAT at 20%. Work out the amount before VAT.
- 4Simultaneous Equations3 marks
4 teas and 3 cakes cost £13.40. 3 teas and 3 cakes cost £10.95. Find the price of a tea.
- 5Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 5, y = 50. Work out y when x = 9.
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