Daily Practice

Higher

26th December 1972

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

1
Writing a Ratio as a Fraction or Linear Function2 marks
x : y = 3 : 8. Write y in terms of x.
2
Vectors3 marks
a is the column vector (0, -1) and b is (-4, -6). Work out 3a - 5b as a column vector.
3
Probability Trees3 marks
4 of 6 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
4
Capture Recapture3 marks
30 beetles are marked and released. Later 12 are caught, of which 4 are marked. Estimate the population.
5
Standard Form2 marks
Work out (4 x 10^6) x (2 x 10^-5). Give your answer in standard form.

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