Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
4th September 1997
- 1Repeated Percentage Change3 marks
A town's population is 25500 and grows by 5% each year. Work out the population after 2 years, to the nearest whole number.
- 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
15 students study Spanish and 11 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
- 4Histograms2 marks
A histogram class is 2 units wide and contains 6 values. Work out the frequency density.
- 5Surds2 marks
Write sqrt(12) in the form a sqrt(b), where b is as small as possible.
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