Daily Practice

Higher

7th July 1988

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

1
Probability Trees3 marks
1 of 5 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 2 units wide and contains 5 values. Work out the frequency density.
3
The Product Rule for Counting3 marks
A code is 3 letters (A to Z) followed by 4 digits (0 to 9), and repeats are allowed. How many codes are possible?
4
Simultaneous Equations3 marks
2 teas and 3 cakes cost £10.70. 1 tea and 3 cakes cost £9.85. Find the price of a tea.
5
Repeated Percentage Change3 marks
A town's population is 4000 and grows by 8% each year. Work out the population after 6 years, to the nearest whole number.

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