Daily Practice

Higher

11th October 1988

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

1
Probability Trees3 marks
5 of 7 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
2
Capture Recapture3 marks
50 fish are marked and released. Later 30 are caught, of which 6 are marked. Estimate the population.
3
The Product Rule for Counting2 marks
A meal deal has 9 mains, 7 sides and 3 drinks. How many different meals are possible?
4
Simultaneous Equations3 marks
5 teas and 2 cakes cost £11.90. 1 tea and 3 cakes cost £11.35. Find the price of a tea.
5
Writing a Ratio as a Fraction or Linear Function2 marks
x : y = 5 : 7. Write y in terms of x.

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