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McKinsey Solve - Ecosystem building & Redrock study

In McKinsey Solve test Ecosystem building, what is the survival rule ?

- Does 1 specie survive if the calories needed are 0 (is able to eat sufficiently) 

- or if the calories needed are 0 and the calories provided are >0 in the ecosystem built 

 

In heard the plant defense game was replaced by the redrock study. Did anyone take it recently ? How many mini cases can one expect ? Is it necessary to complete the full study to pass the test ?

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am 21. Juli 2024
#1 Coach for Sessions (4.500+) | 1.500+ 5-Star Reviews | Proven Success: ➡ interviewoffers.com | Ex BCG | 10Y+ Coaching

Hi there,

1) Does 1 specie survive if the calories needed are 0 (is able to eat sufficiently) or if the calories needed are 0 and the calories provided are >0 in the ecosystem built 

In order for an ecosystem to be sustainable, calories needed should be zero and calories provided above zero for all the species selected.

2) I heard the plant defense game was replaced by the redrock study. Did anyone take it recently?

Plant Defense has been replaced by Redrock in 2023, so it is no longer used.

3) How many mini cases can one expect ? Is it necessary to complete the full study to pass the test ?

Currently there are 6 cases at the end of Redrock. You might pass also if you don’t complete all of them.

If you want to learn more, you can check my guide at the link below, which also includes the new Ocean Treatment game McKinsey launched this year:

McKinsey Solve Game Combo Guide

Best,
Francesco

Florian
Coach
am 22. Juli 2024
1400 5-star reviews across platforms | 600+ offers | Highest-rated case book on Amazon | Uni lecturer in US, Asia, EU

Hi there,

1+2) Yes, a species survives if it gets all the calories needed and the calorie provider >0 calories left

Red Rock replaced Plant Defense in March 2023. It consists of two parts and you should answer all questions in the current recruiting environment to have a strong chance to move to the interviews.

Cheers,

Florian

Pedro
Coach
bearbeitet am 25. Juli 2024
Bain | EY-Parthenon | Former Principal | 1.5h session | 30% discount 1st session

1. Second option, i.e. calories needed should be zero but provided should be above zero.

2. Plant defense game was indeed replaced.

3. Not required to complete the full study (but ideally you do).

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