Higher
15th April 1975
- 1Writing a Ratio as a Fraction or Linear Function2 marks
x : y = 3 : 5. Write y in terms of x.
- 2SOHCAHTOA (Trigonometry)3 marks
A right-angled triangle has a hypotenuse of 8 cm and an angle of 46°. Work out the side adjacent to that angle, to 1 decimal place.
- 3Probability Trees3 marks
5 of 7 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
- 4Capture Recapture3 marks
40 voles are marked and released. Later 12 are caught, of which 4 are marked. Estimate the population.
- 5The Product Rule for Counting2 marks
A meal deal has 3 mains, 6 sides and 5 drinks. How many different meals are possible?
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