Higher
3rd October 1980
- 1Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 7, y = 28. Work out y when x = 5.
- 2Congruent Triangles2 marks
Two triangles are known to be congruent because two pairs of angles and a matching side are equal. Which congruence condition is this?
- 3Conditional Probability3 marks
23 students study Spanish and 10 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
- 4Capture Recapture2 marks
A capture-recapture estimate is made of the ladybird population of a garden. State one assumption the method relies on.
- 5Standard Form2 marks
Work out (4 x 10^4) x (7 x 10^6). Give your answer in standard form.
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