Daily Practice · Higher

Daily Practice - Higher

Grades 6-7 - Higher-tier method and manipulation.

24th July 1997

5 questions · 13 marks · Grades 6-7 · 61 question types in this band

1
Repeated Percentage Change3 marks
A town's population is 23000 and grows by 4% each year. Work out the population after 5 years, to the nearest whole number.
2
Vectors3 marks
a is the column vector (-4, -5) and b is (-3, 2). Work out 2a - 2b as a column vector.
3
Probability Trees3 marks
1 of 7 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 20 units wide and contains 10 values. Work out the frequency density.
5
Standard Form2 marks
Work out (5 x 10^7) x (4 x 10^-3). Give your answer in standard form.

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