Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
24th August 2022
- 1Speed and Density2 marks
A block has volume 85 cm^3 and density 2.5 g/cm^3. Work out its mass.
- 2Perpendicular Lines and the equation of a tangent2 marks
A line has gradient -4. Work out the gradient of a line perpendicular to it.
- 3Conditional Probability3 marks
30 students study Spanish and 11 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, 7, 11. Write down the cumulative frequency at the end of the third class.
- 5Bounds2 marks
A mass is 21 kg, correct to the nearest whole number. Write down the upper bound.
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