Daily Practice

Higher

3rd February 1990

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

1
Probability Trees3 marks
2 of 8 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 8, lower quartile 14, median 22, upper quartile 29 and maximum 34. Work out the interquartile range.
3
Standard Form2 marks
Work out (9 x 10^6) x (9 x 10^2). Give your answer in standard form.
4
Simultaneous Equations3 marks
2 teas and 2 cakes cost £7.30. 2 teas and 3 cakes cost £9.10. Find the price of a tea.
5
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 5, y = 150. Work out y when x = 9.

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