In this problem, Greg introduces a sort of “rule” where, when dividing by 3, if the entire number after the first digit is divisible by 3, then the first digit will be the remainder. Does anyone have more information on this rule? I’d like to take more thorough notes because it is somewhat confusing to me. Thanks!
Hello,
Please post this question in the correct category (you’ve posted this under Verbal Problem Solving) so that the Quant Specialists can help you out.
Find the sum of the digits first.
So it looks like the sum of the digits is 128. Where do we go from here?
So you know that the number is not divisible by 3. What should we subtract from the sum so that the number is divisible by 3? Can you relate this to the actual number?
That makes sense, thank you!