Daily Practice

Higher

5th April 1983

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

1
Probability Trees3 marks
8 of 10 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
2
Capture Recapture3 marks
55 newts are marked and released. Later 14 are caught, of which 2 are marked. Estimate the population.
3
Reverse Percentages3 marks
A bill is £960 including VAT at 20%. Work out the amount before VAT.
4
Simultaneous Equations3 marks
2 teas and 4 cakes cost £17.00. 1 tea and 3 cakes cost £12.00. Find the price of a tea.
5
Writing a Ratio as a Fraction or Linear Function2 marks
x : y = 2 : 3. Write y in terms of x.

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