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Averages

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Question 66

Here is a list of seven numbers. One of the numbers is hidden.

127811810?
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The mean of the numbers is 10.

Find the value of the hidden number.

[2]
Markscheme

Averages Questions

  1. GCSE
  2. /Maths
  3. /Averages

201 exam-style questions on OCR GCSE Maths Averages. Each one has a worked solution and a mark scheme showing where the marks go.

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