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The sum of three consecutive numbers is 156 more than their average what are these numbers?
Wiki User
∙ 13y ago
Let the middle number of the three be n. Then the three consecutive numbers are n-1, n, n+1.
Their sum is n-1 + n + n+1 = 3n
Their average is 3n / 3 = n
The difference between their sum and their average is 3n-n = 2n
2n = 156
=> n = 78.
Thus the three numbers are 77, 78, 79
Wiki User
∙ 13y ago
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