Daily Practice

Higher

24th May 1988

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 = 3 : 8. Write y in terms of x.
2
Finding the Area of Any Triangle3 marks
A triangle has sides of 14 cm and 5 cm with an angle of 102° between them. Work out its area, to 1 decimal place.
3
Probability Trees3 marks
2 of 7 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
4
Capture Recapture3 marks
20 newts are marked and released. Later 40 are caught, of which 4 are marked. Estimate the population.
5
The Product Rule for Counting3 marks
A code is 3 letters (A to Z) followed by 4 digits (0 to 9), and repeats are allowed. How many codes are possible?

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