Foundation Plus
30th March 1971
- 1Inequalities on Graphs3 marks
Does the point (-2, -10) satisfy y > x - 7?
- 2Compound Interest and Depreciation3 marks
£3400 is invested at 3% compound interest per year. Work out the value after 3 years, to the nearest penny.
- 3Pythagoras2 marks
A right-angled triangle has a hypotenuse of 15 cm and one shorter side of 9 cm. Work out the other shorter side.
- 4Probability Trees3 marks
A bag holds 3 red and 3 blue counters. One is taken, replaced, then another is taken. Work out the probability both are red.
- 5Averages from Frequency Tables2 marks
Grouped data has five classes of width 5, the first being 10 < x <= 15. The frequencies in order are 3, 7, 11, 21, 16. Write down the modal class.
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