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McKinsey solve redrock case part - should I round the final answer?

Hi all,

Just did the McKinsey solve. I noticed on the case part with 6 questions from the redrock game, there are not instructions on whether I should round the final answer or not.


Should I round to 2 decimal place as instructed in the study part? Or just drag the answer in from the calculator?

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Top answer
Mihir
Coach
on May 16, 2025
McKinsey Associate Partner and interviewer | Bulletproof MBB prep

Honestly, not sure on this one!

I imagine that they’re looking for the answer direct from the calculator, but wouldn’t be surprised at all if there’s some coding to recognise a correct answer rounded to 2 d.p.

Best of luck, and do consider engaging with a coach for your McK prep. Let me know if I can help.

on May 18, 2025
#1 Coach for Sessions (4.500+) | 1.500+ 5-Star Reviews | Proven Success: ➡ interviewoffers.com | Ex BCG | 10Y+ Coaching

Hi there,

Q: Should I round to 2 decimal place as instructed in the study part? Or just drag the answer in from the calculator?

If they don’t ask to round the number, the safest approach is to drag the answer from the calculator exactly as it is. 

If you round the number, there is a risk that the answer will be considered wrong, while if you report the answer as it is, there won't be that risk.

The study part (I assume you are referring to the analysis/report sections) and the 6 cases are not directly linked, so what reported before doesn’t really matter. 

Good luck!

Francesco

Alessa
Coach
on May 19, 2025
xMcKinsey & Company | xBCG | +200 individual & group coachings | feel free to schedule a 15 min intro call for free

hey!

Drag the exact answer from the calculator unless the question specifically says to round. McKinsey's Solve usually expects precision unless rounding is clearly requested. Stick to what’s shown unless told otherwise.

Alessa

Pedro
Coach
on May 19, 2025
Bain | EY-Parthenon | Former Principal | 1.5h session | 30% discount 1st session

If they don't specifically ask to round, don't round.

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