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Back to OCR Maths Higher June 2018 Paper 4 Home
​Q12: Answers – Paper 4 – June 2018
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Content:
  • Compound Interest​
Quizzes:
  • Compound Interest

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Picture

Working
The value of a car, £V, is given by
Picture
where n is the number of years after it is bought from new.

​a) Write down the value of the car when new.
Picture

​b) Write down the annual percentage decrease in the value of the car.
Picture

c) Show that the value of the car after 4 years is less than half its value when new.
Picture
Picture

Question
12) The value of a car, £V, is given by
Picture
where n is the number of years after it is bought from new.

​a) Write down the value of the car when new.
[1 mark]

​b) Write down the annual percentage decrease in the value of the car.
[1 mark]

c) Show that the value of the car after 4 years is less than half its value when new.
[2 marks]
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