Foundation Plus
25th August 1969
- 1Changing the Subject of a Formula3 marks
Make x the subject of y = 3x^2 - 12.
- 2Repeated Percentage Change3 marks
A town's population is 31500 and grows by 4% each year. Work out the population after 5 years, to the nearest whole number.
- 3Area and Perimeter2 marks
A triangle has a base of 14 cm and a perpendicular height of 13 cm. Work out its area.
- 4Probability Trees3 marks
A bag holds 4 red and 3 blue counters. Two are taken without replacement. Work out the probability both are red.
- 5Averages from Frequency Tables3 marks
In a survey 8 households own 1 car, 4 own 2 cars and 6 own 3 cars. Work out the mean number of cars, to 2 decimal places.
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