Daily Practice

Higher

12th May 1988

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

1
Repeated Percentage Change3 marks
A town's population is 12500 and grows by 3% each year. Work out the population after 6 years, to the nearest whole number.
2
Vectors3 marks
a is the column vector (-3, 4) and b is (5, 4). Work out 2a - 2b as a column vector.
3
Probability Trees3 marks
4 of 9 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
4
Histograms2 marks
A histogram class is 4 units wide and contains 12 values. Work out the frequency density.
5
Recurring Decimals to Fractions3 marks
Write the recurring decimal 0.7171... as a fraction in its simplest form.

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