Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
- 1Speed and Density2 marks
A block has volume 145 cm^3 and density 2.5 g/cm^3. Work out its mass.
- 2Similar Shapes (Area and Volume)3 marks
Two similar shapes have lengths in the ratio 1 : 4. The smaller has an area of 7 cm^2. Work out the area of the larger.
- 3Conditional Probability3 marks
16 students study Spanish and 9 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
- 4Cumulative Frequency2 marks
Four classes in order have frequencies 4, 7, 9, 12. Write down the cumulative frequency at the end of the third class.
- 5Fractional and Negative Indices2 marks
Write 2^-3 as a fraction.
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