Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
20th December 2025
- 1Probability Trees3 marks
4 of 8 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
- 2Box Plots2 marks
A box plot has minimum 6, lower quartile 12, median 17, upper quartile 19 and maximum 22. Work out the interquartile range.
- 3Fractional and Negative Indices3 marks
Work out 49^(3/2).
- 4Simultaneous Equations3 marks
4 teas and 4 cakes cost £21.00. 3 teas and 2 cakes cost £12.35. Find the price of a tea.
- 5Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 4, y = 144. Work out y when x = 7.
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