Foundation Plus
7th November 1980
- 1Changing the Subject of a Formula3 marks
Make x the subject of y = 2x^2 - 9.
- 2Proportion2 marks
7 identical pens cost £12.25. Work out the cost of 11 of the same pens.
- 3Angles in Parallel Lines2 marks
Two parallel lines are crossed by a straight line. One of a pair of alternate angles is 114°. Work out the other, and give a reason.
- 4Probability Trees3 marks
A bag holds 2 red and 6 blue counters. One is taken, replaced, then another is taken. Work out the probability both are red.
- 5Averages from Frequency Tables3 marks
In a survey 4 households own 1 car, 6 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 1980, including the monthly compilation PDF.