Daily Practice

Higher

28th January 1982

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

1
Probability Trees3 marks
5 of 9 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
2
Histograms2 marks
A histogram class is 20 units wide and contains 80 values. Work out the frequency density.
3
Surds2 marks
Write sqrt(18) in the form a sqrt(b), where b is as small as possible.
4
Simultaneous Equations3 marks
4 teas and 2 cakes cost £14.10. 1 tea and 4 cakes cost £14.55. Find the price of a tea.
5
Repeated Percentage Change3 marks
A town's population is 36000 and grows by 6% each year. Work out the population after 5 years, to the nearest whole number.

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