Daily Practice

Higher

20th February 1978

5 questions · 14 marks · Grades 6-7 · 61 question types in this band

1
Reverse Percentages3 marks
A bill is £840 including VAT at 20%. Work out the amount before VAT.
2
Solving Quadratics3 marks
Solve x^2 - x - 12 = 0.
3
Repeated Percentage Change3 marks
A price rises by 25% and then falls by 25%. Work out the overall percentage change, to 2 decimal places.
4
Perpendicular Lines and the equation of a tangent2 marks
A line has gradient -3. Work out the gradient of a line perpendicular to it.
5
Conditional Probability3 marks
31 students study Spanish and 12 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.

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