Daily Practice · Higher

Daily Practice - Higher

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

18th March 2000

5 questions · 13 marks · Grades 6-7 · 61 question types in this band

1
Probability Trees3 marks
3 of 9 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 6, lower quartile 9, median 13, upper quartile 23 and maximum 32. Work out the interquartile range.
3
Standard Form2 marks
Work out (5 x 10^4) x (7 x 10^-6). Give your answer in standard form.
4
Simultaneous Equations3 marks
3 teas and 2 cakes cost £8.20. 1 tea and 3 cakes cost £6.35. Find the price of a tea.
5
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 3, y = 72. Work out y when x = 7.

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