Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
21st April 2010
- 1Reverse Percentages3 marks
A bill is £192 including VAT at 20%. Work out the amount before VAT.
- 2Drawing Quadratic Graphs2 marks
For the curve y = x^2 - 8x - 2, work out y when x = 0.
- 3Speed and Density2 marks
A block has volume 20 cm^3 and density 4 g/cm^3. Work out its mass.
- 4Sector Areas and Arc Lengths3 marks
A sector of a circle has radius 9 cm and angle 30°. Work out its area, to 1 decimal place.
- 5Conditional Probability3 marks
8 students study Spanish and 4 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
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