The sum three consecutive numbers is 156. Find the number which is a multiple of 13 out of these numbers.
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Let three consecutive numbers be x, (x+1) and (x+2).
According to the question,
Thus, we get the numbers 51, 51+1 and 51+2, i.e. 51, 52 and 53. Out of these, only 52 is a multiple of 13.