A 3 digit odd number.

A 3 digit odd number. Sum is 13. Hundreds digit is thrice the tens digit ,and tens digit is thrice the ones digit. What number am i?
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If the hundreds digit is thrice the tens digit, and the tens digit thrice the units, then the hundreds digit is 9 times the units digit so the hundreds digit is 9 and the units 1, therefore the tens digit is 3 and the number is 931, the digits of which sum to 13.

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