Daily Practice · Higher

Daily Practice - Higher

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

26th November 2019

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 = 2 : 9. Write y in terms of x.
2
Vectors3 marks
a is the column vector (-3, 0) and b is (-6, -4). Work out 5a - 3b as a column vector.
3
Probability Trees3 marks
3 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
50 beetles are marked and released. Later 20 are caught, of which 2 are marked. Estimate the population.
5
Surds2 marks
Write sqrt(32) in the form a sqrt(b), where b is as small as possible.

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