Exam-Style Question on Averages
A mathematics exam-style question with a worked solution that can be revealed gradually
Question id: 462. This question is similar to one that appeared on a GCSE Higher paper in 2017. The use of a calculator is allowed.
A basket contains apples and oranges. The mean weight of the 9 apples in the basket is 265g. The mean weight of all 21 items of fruit in the basket is 290g.
Work out the mean weight of the oranges.
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