Daily Practice · Higher

Daily Practice - Higher

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

22nd April 2014

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

1
Probability Trees3 marks
6 of 8 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
2
Capture Recapture3 marks
40 voles are marked and released. Later 60 are caught, of which 6 are marked. Estimate the population.
3
Standard Form2 marks
Work out (9 x 10^6) x (2 x 10^-6). Give your answer in standard form.
4
Factorising Harder Quadratics3 marks
Factorise 12x^2 - 7x + 1.
5
Writing a Ratio as a Fraction or Linear Function2 marks
x : y = 2 : 9. Write y in terms of x.

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