Foundation Plus
28th March 1977
- 1Changing the Subject of a Formula3 marks
Make x the subject of y = 5x^2 - 10.
- 2Repeated Percentage Change3 marks
A town's population is 36000 and grows by 3% each year. Work out the population after 6 years, to the nearest whole number.
- 3Area and Perimeter2 marks
A triangle has a base of 16 cm and a perpendicular height of 17 cm. Work out its area.
- 4Probability Trees3 marks
A bag holds 3 red and 5 blue counters. Two are taken without replacement. Work out the probability both are red.
- 5Averages from Frequency Tables3 marks
In a survey 9 households own 1 car, 5 own 2 cars and 9 own 3 cars. Work out the mean number of cars, to 2 decimal places.
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