Monday Morning Braintease - Probability

I apologize for the late post, I usually like to try to get these out in the morning...hence the name.

You have an object whose weight is an integer value somewhere between 1 and 100 and a balancing scale. What is the fewest number of weights you need to be guaranteed that you can correctly identify the weight of the object?

x
x
x
x
x
x
x
x
x
x
x
x
x
x
edit: (extra spaces added so everyone that is trying to solve the brainteaser doesn't immediately see the answer)

6 Comments
 

Similique aut est fugit cupiditate aut illo. Dolores asperiores architecto ipsum ipsum rerum. Facilis unde fugit aperiam aut exercitationem ratione vitae. Est ipsum expedita ipsa facere fugiat. Commodi laborum neque qui error. Expedita id a ea adipisci inventore. Voluptas ratione aspernatur non saepe aperiam. Sunt aut omnis facere.

Odio non perferendis tenetur ab libero voluptate explicabo. Et molestiae ea et dolores ut. Nostrum consequuntur deleniti placeat non. Eveniet aut quia illo mollitia qui dolorem. Suscipit magni doloribus minus praesentium maxime quod accusamus. Natus odit assumenda molestiae qui iure pariatur.

Nihil unde molestias in et. Molestiae commodi eos nihil excepturi corrupti nesciunt. Temporibus repudiandae rerum est laudantium. Quia modi qui impedit error fugiat occaecati. Quia ut unde libero a ipsam quia iure. Fugiat quibusdam facere blanditiis qui corporis voluptatem.

Career Advancement Opportunities

July 2026 Investment Banking

  • Evercore 01 99.4%
  • Moelis & Company 01 98.9%
  • JPMorgan 01 98.3%
  • Guggenheim Partners 01 97.7%
  • Morgan Stanley 07 97.1%

Overall Employee Satisfaction

July 2026 Investment Banking

  • Moelis & Company No 99.4%
  • Evercore No 98.8%
  • Morgan Stanley 01 98.3%
  • BMO Capital Markets 13 97.7%
  • Banco Santander 01 97.1%

Professional Growth Opportunities

July 2026 Investment Banking

  • Evercore 01 99.4%
  • Moelis & Company 01 98.9%
  • Morgan Stanley 06 98.3%
  • Goldman Sachs 01 97.7%
  • JPMorgan 01 97.1%

Total Avg Compensation

July 2026 Investment Banking

  • Vice President (15) $434
  • Associates (46) $258
  • 3rd+ Year Analyst (8) $210
  • 2nd Year Analyst (22) $179
  • Intern/Summer Associate (13) $156
  • 1st Year Analyst (80) $150
  • Intern/Summer Analyst (73) $101
notes
16 IB Interviews Notes

“... there’s no excuse to not take advantage of the resources out there available to you. Best value for your $ are the...”

Leaderboard

1
redever's picture
redever
99.2
2
Secyh62's picture
Secyh62
99.0
3
BankonBanking's picture
BankonBanking
99.0
4
kanon's picture
kanon
99.0
5
Betsy Massar's picture
Betsy Massar
98.9
6
GameTheory's picture
GameTheory
98.9
7
dosk17's picture
dosk17
98.9
8
CompBanker's picture
CompBanker
98.9
9
DrApeman's picture
DrApeman
98.9
10
bolo up's picture
bolo up
98.8
success
From 10 rejections to 1 dream investment banking internship

“... I believe it was the single biggest reason why I ended up with an offer...”