Foundation Plus
6th November 1982
- 1Probability Trees3 marks
A bag holds 8 red and 3 blue counters. One is taken, replaced, then another is taken. Work out the probability both are red.
- 2Frequency Trees3 marks
180 people were surveyed. 70 were adults, of whom 15 said yes. 45 of the children said yes. How many said yes altogether?
- 3Prime Factors, HCF and LCM3 marks
Write 36 as a product of its prime factors, using index form.
- 4Simultaneous Equations3 marks
2 teas and 3 cakes cost £9.50. 3 teas and 5 cakes cost £15.55. Find the price of a tea.
- 5Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 5, y = 55. Work out y when x = 10.
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