Daily Practice

Higher

11th April 1991

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

1
Probability Trees3 marks
3 of 10 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 10 units wide and contains 25 values. Work out the frequency density.
3
Fractional and Negative Indices3 marks
Work out 64^(2/3).
4
Simultaneous Equations3 marks
3 teas and 3 cakes cost £9.00. 1 tea and 4 cakes cost £7.95. Find the price of a tea.
5
Repeated Percentage Change3 marks
A town's population is 37500 and grows by 6% each year. Work out the population after 2 years, to the nearest whole number.

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