Daily Practice - Higher
24th June 1991
- 1Standard Form2 marks
Work out (2 x 10^4) x (9 x 10^-3). Give your answer in standard form.
- 2Quadratic Formula3 marks
Use the quadratic formula to solve 3x^2 - 10x + 7 = 0, to 2 decimal places.
- 3Repeated Percentage Change3 marks
A price rises by 10% and then falls by 20%. Work out the overall percentage change, to 2 decimal places.
- 4Similar Shapes (Area and Volume)3 marks
Two similar shapes have lengths in the ratio 1 : 4. The smaller has an area of 22 cm^2. Work out the area of the larger.
- 5Conditional Probability3 marks
22 students study Spanish and 6 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
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