Mckinsey First Round Interview Error on Math, how big a deal is it?

Mckinsey interview 1st round I messed up on the math, how big a deal is that?

So on my math, I accidentally did a fraction wrong. It was a big bonehead moment. I did 2/3 as 0.33 (I just messed up!) and it messed everything up. My approach to solving the question was right, but I messed up on simple math. How big of a deal is this?

3 Comments
 

I made math mistakes in both of my R1 interviews and it was fine. But I practiced to do math slowly and in organised manner for the R2 to avoid the same issues. 

 

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