Daily Practice

Higher

27th September 1977

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

1
Probability Trees3 marks
4 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
25 newts are marked and released. Later 10 are caught, of which 2 are marked. Estimate the population.
3
Surds2 marks
Write sqrt(48) in the form a sqrt(b), where b is as small as possible.
4
Simultaneous Equations3 marks
5 teas and 3 cakes cost £13.75. 2 teas and 3 cakes cost £8.65. Find the price of a tea.
5
Writing a Ratio as a Fraction or Linear Function2 marks
x : y = 3 : 5. Write y in terms of x.

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