Daily Practice
Higher
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29th March 1981
- 1Box Plots2 marks
A box plot has a minimum of 14 and a maximum of 34. Work out the range.
- 2Reverse Percentages3 marks
A bill is £504 including VAT at 20%. Work out the amount before VAT.
- 3Expanding and Factorising Quadratics2 marks
Factorise x^2 - 25.
- 4Direct and Inverse Proportion3 marks
y is inversely proportional to x. When x = 7, y = 10. Work out y when x = 5.
- 5Circle Theorems2 marks
A, B and C are points on a circle with centre O. Angle AOC is 78°. Work out angle ABC, where B is on the major arc.
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Any date always gives the same five questions, so a sheet can be set again or shared. All of March 1981, including the monthly compilation PDF.