Foundation Plus
8th March 1982
- 1Solving Equations3 marks
Solve 7(x - 5) = 21.
- 2Repeated Percentage Change3 marks
A town's population is 29000 and grows by 6% each year. Work out the population after 6 years, to the nearest whole number.
- 3Pythagoras2 marks
A right-angled triangle has a hypotenuse of 15 cm and one shorter side of 9 cm. Work out the other shorter side.
- 4Probability Trees3 marks
A bag holds 9 red and 2 blue counters. One is taken, replaced, then another is taken. Work out the probability both are red.
- 5Capture Recapture3 marks
45 newts are marked and released. Later 28 are caught, of which 4 are marked. Estimate the population.
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