Daily Practice

Higher

16th January 1969

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

1
Repeated Percentage Change3 marks
A town's population is 2500 and grows by 5% each year. Work out the population after 3 years, to the nearest whole number.
2
Vectors3 marks
a is the column vector (-2, -6) and b is (4, 2). Work out 5a - 4b as a column vector.
3
Probability Trees3 marks
4 of 9 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
4
Histograms2 marks
A histogram class is 5 units wide and contains 15 values. Work out the frequency density.
5
Reverse Percentages3 marks
A bill is £960 including VAT at 20%. Work out the amount before VAT.

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