Higher
31st October 1985
- 1Repeated Percentage Change3 marks
A town's population is 10000 and grows by 4% each year. Work out the population after 2 years, to the nearest whole number.
- 2Spheres and Cones3 marks
A sphere has radius 3 cm. Work out its volume, leaving your answer in terms of pi.
- 3Probability Trees3 marks
6 of 8 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
- 4Histograms2 marks
A histogram class is 5 units wide and contains 15 values. Work out the frequency density.
- 5Recurring Decimals to Fractions3 marks
Write the recurring decimal 0.8282... as a fraction in its simplest form.
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