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Mean is the average of all the numbers.Sum of all the listed numbers = 584Total of all the listed numbers = 25584 / 25 = 23.36Mean = 23.36
42/50 = 21/25
-4 + 21 = 17
It is increasing by 4 and the nth term is 4n+1
Assuming the pattern would continue: 25, 24, 23, 22, 21, 20, 19, 18, 17, 16, 15, 14, 13...