Higher
2nd November 1961
- 1Probability Trees3 marks
4 of 10 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
- 2Histograms2 marks
A histogram class is 20 units wide and contains 40 values. Work out the frequency density.
- 3Surds2 marks
Write sqrt(27) in the form a sqrt(b), where b is as small as possible.
- 4Simultaneous Equations3 marks
3 teas and 4 cakes cost £19.55. 3 teas and 5 cakes cost £22.75. Find the price of a tea.
- 5Repeated Percentage Change3 marks
A town's population is 38500 and grows by 5% each year. Work out the population after 4 years, to the nearest whole number.
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Any date always gives the same five questions, so a sheet can be set again or shared. All of November 1961, including the monthly compilation PDF.