Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
- 1Writing a Ratio as a Fraction or Linear Function2 marks
x : y = 2 : 7. Write y in terms of x.
- 2Similar Shapes (Area and Volume)3 marks
Two similar shapes have lengths in the ratio 1 : 5. The smaller has an area of 16 cm^2. Work out the area of the larger.
- 3Conditional Probability3 marks
15 students study Spanish and 3 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
- 4Capture Recapture3 marks
60 beetles are marked and released. Later 63 are caught, of which 7 are marked. Estimate the population.
- 5Surds2 marks
Write sqrt(75) in the form a sqrt(b), where b is as small as possible.
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