Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
1st February 2016
- 1Reverse Percentages3 marks
A bill is £600 including VAT at 20%. Work out the amount before VAT.
- 2Drawing Quadratic Graphs2 marks
For the curve y = x^2 + 7x - 7, work out y when x = 0.
- 3Repeated Percentage Change3 marks
A price rises by 25% and then falls by 10%. Work out the overall percentage change, to 2 decimal places.
- 4Sector Areas and Arc Lengths3 marks
A sector of a circle has radius 13 cm and angle 45°. Work out its area, to 1 decimal place.
- 5Conditional Probability3 marks
26 students study Spanish and 7 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
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