Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
24th February 2005
- 1Repeated Percentage Change3 marks
A town's population is 21000 and grows by 6% each year. Work out the population after 3 years, to the nearest whole number.
- 2Spheres and Cones3 marks
A sphere has radius 3 cm. Work out its volume, leaving your answer in terms of pi.
- 3Probability Trees3 marks
2 of 10 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
- 4Histograms2 marks
A histogram class is 10 units wide and contains 20 values. Work out the frequency density.
- 5Standard Form2 marks
Work out (7 x 10^5) x (3 x 10^-3). Give your answer in standard form.
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