Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
22nd August 2019
- 1Repeated Percentage Change3 marks
A town's population is 16500 and grows by 5% each year. Work out the population after 2 years, to the nearest whole number.
- 2Vectors3 marks
a is the column vector (0, -6) and b is (-4, 5). Work out 2a - 4b as a column vector.
- 3Probability Trees3 marks
2 of 5 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 4 units wide and contains 16 values. Work out the frequency density.
- 5Reverse Percentages3 marks
A bill is £336 including VAT at 20%. Work out the amount before VAT.
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