Daily Practice
Foundation Plus
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23rd October 1987
- 1Probability Trees3 marks
A bag holds 4 red and 6 blue counters. Two are taken without replacement. Work out the probability both are red.
- 2Averages from Frequency Tables3 marks
In a survey 6 households own 1 car, 5 own 2 cars and 4 own 3 cars. Work out the mean number of cars, to 2 decimal places.
- 3Indices1 mark
Write down the value of 13^1.
- 4Changing the Subject of a Formula3 marks
Make x the subject of y = 7x^2 - 8.
- 5Proportion2 marks
4 identical pens cost £3.20. Work out the cost of 4 of the same pens.
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Any date always gives the same five questions, so a sheet can be set again or shared. All of October 1987, including the monthly compilation PDF.