Daily Practice · Higher

Daily Practice - Higher

18th May 1993

5 questions · 14 marks · Grades 6-7 · 61 question types in this band

1
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.
2
Capture Recapture3 marks
60 voles are marked and released. Later 54 are caught, of which 9 are marked. Estimate the population.
3
Reverse Percentages3 marks
A bill is £216 including VAT at 20%. Work out the amount before VAT.
4
Simultaneous Equations3 marks
4 teas and 2 cakes cost £9.20. 4 teas and 3 cakes cost £12.20. Find the price of a tea.
5
Writing a Ratio as a Fraction or Linear Function2 marks
x : y = 5 : 9. Write y in terms of x.

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