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What was the average number of items purchased by each of the last 15 shoppers?

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The first 25 shoppers on a certain website purchased an average of two items each.

After a further 15 shoppers had made their purchases, the average number of items per person rose to five.

What was the average number of items purchased by each of the last 15 shoppers?

posted Nov 23, 2021 by Madhavi Latha

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