Daily Practice · Higher

Daily Practice - Higher

23rd July 1991

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

1
Capture Recapture3 marks
10 fish are marked and released. Later 28 are caught, of which 7 are marked. Estimate the population.
2
The Product Rule for Counting3 marks
A code is 2 letters (A to Z) followed by 2 digits (0 to 9), and repeats are allowed. How many codes are possible?
3
Parallel and Perpendicular Lines3 marks
A line has equation y = 3x + 4. Work out the gradient of any line perpendicular to it.
4
Writing a Ratio as a Fraction or Linear Function2 marks
x : y = 3 : 7. Write y in terms of x.
5
Enlarging with Negative Scale Factors3 marks
The point (0, -1) is enlarged by scale factor -2 about the centre (-4, 2). Write down the coordinates of the image.

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