Higher
28th June 1973
- 1Recurring Decimals to Fractions3 marks
Write the recurring decimal 0.777... as a fraction in its simplest form.
- 2Simultaneous Equations3 marks
3 teas and 1 cake cost £5.55. 2 teas and 3 cakes cost £10.00. Find the price of a tea.
- 3Repeated Percentage Change3 marks
A town's population is 27000 and grows by 4% each year. Work out the population after 4 years, to the nearest whole number.
- 4SOHCAHTOA (Trigonometry)3 marks
A right-angled triangle has a hypotenuse of 5 cm and an angle of 58°. Work out the side adjacent to that angle, to 1 decimal place.
- 5Probability Trees3 marks
2 of 5 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
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