Higher
1st February 1974
- 1Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 8, y = 88. Work out y when x = 9.
- 2Similar Shapes (Area and Volume)3 marks
Two similar shapes have lengths in the ratio 1 : 2. The smaller has an area of 5 cm^2. Work out the area of the larger.
- 3Conditional Probability3 marks
18 students study Spanish and 7 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 beetle population of a woodland. State one assumption the method relies on.
- 5Recurring Decimals to Fractions3 marks
Write the recurring decimal 0.8383... as a fraction in its simplest form.
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