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Do you have to use to the on-screen calculator for McKinsey’s RedRock study?

I find using the onscreen calculator far too slow. Does it negatively impact score if you calculate things using a normal calculator and input the final results?

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Clara
Coach
on Sep 01, 2023
McKinsey | Awarded professor at Master in Management @ IE | MBA at MIT |+180 students coached | Integrated FIT Guide aut

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Ian
Coach
on Aug 29, 2023
Top US BCG / MBB Coach - 5,000 sessions |Tech, Platinion, Big 4 | 9/9 personal interviews passed | 95% candidate success

Hi there,

My understanding is you do not, but I could be wrong here. If it were me, I would use pen and paper to think through everything.

Then, when I know the calculation I want to do, I would use the on-screen calcualtor (so McK knows my logic AND so that I have those results to drag and drop later)

on Aug 29, 2023
#1 Coach for Sessions (4.500+) | 1.500+ 5-Star Reviews | Proven Success: ➡ interviewoffers.com | Ex BCG | 10Y+ Coaching

Hi there,

Q: Does it negatively impact score if you calculate things using a normal calculator and input the final results?

It is not clear if McKinsey uses all the calculator steps as part of their process score. For this reason, my suggestion would be:

  1. If you are ok with the time, use the calculator provided by the game also for the intermediate steps.
  2. If you are running out of time, skip the calculator intermediate steps and just use it for the final result.

Good luck!

Francesco

Andi
Coach
on Aug 29, 2023
BCG 1st & Final Round interviewer | Personalized prep with >95% success rate | 7yrs coaching | Experienced Hires

Hi there,

it might impact the process score, but to be frank, noone really knows except the game creators. Suggest you proceed as Francesco suggested - use it, if you have sufficient time, skip it if you are short on time to accelerate.

Wish you all the best.

Regards, Andi

on Aug 29, 2023
#1 Rated McKinsey Coach | Top MBB Coach | Verifiable success rates

Hi there!

It's not clear how they are tracking the use of the calculator, so I'd use it if I were you. 

Best,
Cristian

…………………………………………………………………………………………………………………………………………

Practicing for interviews? Check out my latest case based on a first-round MBB interview >>> SoyTechnologies  

Deleted user
on Aug 30, 2023

Hello,

I'm not sure whether the calculator is factored in, though my guess would be that it isn't. I think Francesco's advice on this is pretty good - stick to the onscreen calculator when you can, just in case.

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