Mathematics, 07.07.2020 06:01, saskiat1155

There is a list of seven numbers. The average of the first four numbers is 5, and the average of the last four numbers is 8. If the average of all seven numbers is 6 4/7 , find the number common to both sets of four numbers.

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There is a list of seven numbers. The average of the first four numbers is 5, and the average of the...