Foundation Plus
- 1Inequalities on Graphs3 marks
Does the point (5, -7) satisfy y > -x - 6?
- 2Compound Interest and Depreciation3 marks
£2400 is invested at 2.5% compound interest per year. Work out the value after 4 years, to the nearest penny.
- 3Similar Shapes (Area and Volume)3 marks
Two similar shapes have lengths in the ratio 1 : 4. The smaller has an area of 12 cm^2. Work out the area of the larger.
- 4Probability (Higher)3 marks
A biased coin lands on heads with probability 0.2. It is thrown 200 times. How many heads would you expect?
- 5Averages from Frequency Tables2 marks
Grouped data has five classes of width 10, the first being 10 < x <= 20. The frequencies in order are 21, 3, 7, 16, 11. Write down the modal class.
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Any date always gives the same five questions, so a sheet can be set again or shared. All of May 1981, including the monthly compilation PDF.