Daily Practice · Higher

Daily Practice - Higher

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

7th August 2008

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

1
Repeated Percentage Change3 marks
A town's population is 34500 and grows by 8% each year. Work out the population after 2 years, to the nearest whole number.
2
Vectors3 marks
a is the column vector (4, 4) and b is (3, 2). Work out 2a - 4b as a column vector.
3
Probability Trees3 marks
7 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 20 units wide and contains 40 values. Work out the frequency density.
5
Recurring Decimals to Fractions3 marks
Write the recurring decimal 0.4242... as a fraction in its simplest form.

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