Higher
10th March 1991
- 1Direct and Inverse Proportion3 marks
y is inversely proportional to x. When x = 4, y = 20. Work out y when x = 10.
- 2SOHCAHTOA (Trigonometry)3 marks
A right-angled triangle has a hypotenuse of 15 cm and an angle of 52°. Work out the side opposite that angle, to 1 decimal place.
- 3Probability Trees3 marks
2 of 6 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
- 4Box Plots2 marks
A box plot has a minimum of 4 and a maximum of 26. Work out the range.
- 5The Product Rule for Counting2 marks
A meal deal has 8 mains, 5 sides and 2 drinks. How many different meals are possible?
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