Foundation Plus
7th April 1974
- 1Simultaneous Equations3 marks
3 teas and 3 cakes cost £12.15. 1 tea and 2 cakes cost £6.55. Find the price of a tea.
- 2Writing a Ratio as a Fraction or Linear Function2 marks
x : y = 2 : 3. Write y in terms of x.
- 3Similar Shapes (Area and Volume)3 marks
Two similar shapes have lengths in the ratio 1 : 3. The smaller has an area of 18 cm^2. Work out the area of the larger.
- 4Probability (Higher)3 marks
A biased coin lands on heads with probability 0.25. It is thrown 200 times. How many heads would you expect?
- 5Frequency Trees3 marks
220 people were surveyed. 90 were adults, of whom 5 said yes. 10 of the children said yes. How many said yes altogether?
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