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​Q18: Answers – Paper 1 – November 2018

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Content:

• Highest Common Factor & Lowest Common Multiple​

Quizzes:

• Highest Common Factor & Lowest Common Multiple

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Question

18) Doctor Jones starts an appointment every 20 minutes.
Doctor Warholm starts an appointment every 35 minutes.

The first appointment for both doctors starts at 8.30 am.

​What is the next time that they have an appointment start at the same time?

[4 marks]​

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