Daily Practice
Foundation Plus
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29th November 1985
- 1Changing the Subject of a Formula3 marks
Make x the subject of y = 9x^2 - 12.
- 2Proportion2 marks
8 identical notebooks cost £16.80. Work out the cost of 3 of the same notebooks.
- 3Area and Perimeter2 marks
A triangle has a base of 24 cm and a perpendicular height of 14 cm. Work out its area.
- 4Probability Trees3 marks
A bag holds 3 red and 6 blue counters. Two are taken without replacement. Work out the probability both are red.
- 5Averages from Frequency Tables3 marks
In a survey 4 households own 1 car, 2 own 2 cars and 9 own 3 cars. Work out the mean number of cars, to 2 decimal places.
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Any date always gives the same five questions, so a sheet can be set again or shared. All of November 1985, including the monthly compilation PDF.