Daily Practice · Higher

Daily Practice - Higher

24th January 1995

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

1
Writing a Ratio as a Fraction or Linear Function2 marks
x : y = 7 : 9. Write y in terms of x.
2
Vectors3 marks
a is the column vector (2, 3) and b is (4, 6). Work out 2a - 5b as a column vector.
3
Probability Trees3 marks
3 of 8 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
4
Capture Recapture3 marks
55 fish are marked and released. Later 72 are caught, of which 9 are marked. Estimate the population.
5
Reverse Percentages3 marks
A bill is £816 including VAT at 20%. Work out the amount before VAT.

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