Foundation Plus
26th April 1988
- 1Probability Trees3 marks
A bag holds 2 red and 7 blue counters. One is taken, replaced, then another is taken. Work out the probability both are red.
- 2Averages from Frequency Tables2 marks
Grouped data has five classes of width 10, the first being 40 < x <= 50. The frequencies in order are 3, 11, 16, 7, 21. Write down the modal class.
- 3Prime Factors, HCF and LCM3 marks
Write 36 as a product of its prime factors, using index form.
- 4Inequalities on Graphs3 marks
Does the point (4, 16) satisfy y > 3x + 8?
- 5Compound Interest and Depreciation3 marks
£1500 is invested at 4% compound interest per year. Work out the value after 5 years, to the nearest penny.
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Any date always gives the same five questions, so a sheet can be set again or shared. All of April 1988, including the monthly compilation PDF.