Daily Practice · Higher

Daily Practice - Higher

Grades 6-7 - Higher-tier method and manipulation.

24th September 2005

5 questions · 14 marks · Grades 6-7 · 61 question types in this band

1
Probability Trees3 marks
2 of 10 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
2
Box Plots2 marks
A box plot has minimum 5, lower quartile 12, median 19, upper quartile 22 and maximum 26. Work out the interquartile range.
3
Fractional and Negative Indices3 marks
Work out 27^(2/3).
4
Simultaneous Equations3 marks
4 teas and 2 cakes cost £11.50. 4 teas and 3 cakes cost £14.35. Find the price of a tea.
5
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 6, y = 288. Work out y when x = 2.

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