The sum of three consecutive odd numbers must be divisible by 3. As 59 is not wholly divisible by 3 the question is invalid.
PROOF : Let the numbers be n - 2, n and n + 2. Then the sum is 3n which is divisible by 3.
If the question refers to three consecutive numbers then a similar proof shows that the sum of these three numbers is also divisible by 3. Again, the question would be invalid.
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The numbers are 57, 59, 61 and 63.
The numbers are 57, 59, 61 and 63.
57 and 59
59,61,63,65 It is 59
18 2/3 + 19 2/3 + 20 2/3 = 59