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Anonymous A
on Apr 24, 2021
Global
Question about
Case Interview Basics Article
I want to receive updates regarding this question via email.

# Wks per YEar

Aren't there 52 weeks per year? This article mentions 50 weeks per year.

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Francesco
Coach
on Apr 25, 2021
#1 Coach for Sessions (4.500+) | 1.500+ 5-Star Reviews | Proven Success: ➡ interviewoffers.com | Ex BCG | 10Y+ Coaching

Hi there,

Yes, in a year there are 52 weeks. However, you can usually ask the interviewer if you can simplify things and use 50, in particular if you are doing market sizing/estimation.

It seems PrepLounge reported directly the approximated value. Same thing for the number of days in 3 years for which they reported 1000 instead of 1095.

It is important you explicitly ask the interviewer if you can approximate, as otherwise he/she may assume you made a mistake / don’t know the real value.

Best,

Francesco

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Ian
Coach
on Apr 25, 2021
Top US BCG / MBB Coach - 5,000 sessions |Tech, Platinion, Big 4 | 9/9 personal interviews passed | 95% candidate success

Hi there,

In most cases, if you need to annualize a weekly number, you can use 50 weeks. Equally, to annualize a daily number you can use 350. 

Of course, check with the interviewer beforehand to make sure that's alright!

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Antonello
Coach
on Apr 25, 2021
McKinsey | NASA | top 10 FT MBA professor for consulting interviews | 6+ years of coaching

Hi, I confirm the correct number is 52 but oftentimes 50 is used to run calculation easier, especially in estimations.

Best,
Antonello

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Business Sense
Business sense refers to the ability to quickly grasp economic dynamics and make decisions that are both strategically and commercially sound. In consulting, it’s not enough to repeat theories from your business degree. What matters is a deep understanding of how companies operate, what drives markets, and what different stakeholders are aiming to achieve.Consultants with strong business acumen can quickly adapt to new industries, understand client needs, and set priorities that make economic sense. They don’t just ask, “What is analytically correct?” – they also ask, “What truly benefits the company?” This mindset often makes the difference in a case interview. Why Your Business Sense Matters in ConsultingAs a consultant, you’re expected not only to analyze complex problems but also to think in a solution-oriented and entrepreneurial way. A strong business mindset helps you put analyses into context, assess actions realistically, and focus on generating maximum client value.In day-to-day consulting, you're working under pressure, collaborating with decision-makers, and constantly weighing trade-offs. Those who think commercially and can strategically prioritize have a clear edge.In a case interview, showing that you understand markets and business models is key – it sets you apart and proves your readiness for the job.👉 In our Case Library, you can prepare effectively with curated practice cases and put your business sense to the test.
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