Daily Practice

Higher

10th July 1983

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

1
Probability Trees3 marks
2 of 7 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 a minimum of 12 and a maximum of 52. Work out the range.
3
Surds2 marks
Write sqrt(12) in the form a sqrt(b), where b is as small as possible.
4
Simultaneous Equations3 marks
3 teas and 4 cakes cost £18.20. 4 teas and 3 cakes cost £17.15. Find the price of a tea.
5
Direct and Inverse Proportion3 marks
y is inversely proportional to x. When x = 2, y = 60. Work out y when x = 10.

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