During my first round BCG interview I was doing long division and got to the wrong number (437 instead of 430.7). The interviewer didn't correct me and let me use this number for a sbusequent calculation which was then used in my recommendation.
I was curious if (most likely)...
-This means I automatically failed since I was not corrected and allowed to use incorrect results
-The interviewer let it slide since we were running out of time (and the rest of the case went smoothly)
-I did every other part of the math correctly so this division error wasn't a huge deal
-The interviewer may not have noticed the mistake
-Since the calculation is within 2% of the correct answer, my final answer (despite being incorrect by a wider margin since the incorrect division was multipled) wasn't that bad
[I know that it's very hard to determine the implications of a mistake since you weren't there, though I was hoping to get some perspectives on candidates that have made similar mistakes]