Higher
27th February 1986
- 1Expanding Triple Brackets3 marks
Expand and simplify (x - 3)(x - 1)(x + 2).
- 2Repeated Percentage Change3 marks
A town's population is 29500 and grows by 6% each year. Work out the population after 5 years, to the nearest whole number.
- 3Pythagoras2 marks
A right-angled triangle has a hypotenuse of 10 cm and one shorter side of 6 cm. Work out the other shorter side.
- 4Venn Diagrams3 marks
In a Venn diagram, 3 are in A only, 16 in B only, 10 in both and 2 in neither. Work out the probability a random one is in both.
- 5Histograms2 marks
A histogram class is 5 units wide and contains 7.5 values. Work out the frequency density.
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Any date always gives the same five questions, so a sheet can be set again or shared. All of February 1986, including the monthly compilation PDF.