Foundation Plus
5th February 1972
- 1Simultaneous Equations3 marks
4 teas and 4 cakes cost £13.80. 4 teas and 2 cakes cost £9.60. Find the price of a tea.
- 2Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 3, y = 30. Work out y when x = 15.
- 3Similar Shapes (Area and Volume)3 marks
Two similar shapes have lengths in the ratio 1 : 4. The smaller has an area of 24 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 500 times. How many heads would you expect?
- 5Frequency Trees3 marks
90 people were surveyed. 70 were adults, of whom 25 said yes. 5 of the children said yes. How many said yes altogether?
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