The average of five consecutive average number is 61. What is the difference between the highest and lowest number?

The average of five consecutive average number is 61. What is the difference between the highest and lowest number? Correct Answer 8

Let, number be x, x + 2, x + 4, x + 6, and x + 8 Then ( x + x + 2 + x + 4 + x + 6 + x + 8)5 = 61 5x + 20 = 305 x = 57
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