Mathematics, 21.11.2020 23:20, lily5196

Hi, I am confused on this question: The sequence 12, 15, 18, 21, 51, 81, ... consists of all positive multiples of 3 that contain at least one digit that is a 1. What is the 50th term of the sequence?

(Source: 2006 National Target #5)

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Hi, I am confused on this question: The sequence 12, 15, 18, 21, 51, 81, ... consists of all positi...