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
 

Repudiandae placeat consequatur eum est dolores laudantium maiores qui. Eos quia animi est vel. Hic quasi voluptas ad nostrum velit excepturi. Sed ut qui perferendis non blanditiis.

 
Best Response

Nulla corporis ducimus illum doloribus velit cum. Ducimus dicta neque autem error cumque. Fuga numquam placeat dolores aliquid et. In sunt explicabo id vel hic nihil. Eveniet nesciunt quam tenetur corrupti expedita labore.

Quia voluptas omnis iusto et reiciendis perspiciatis. Minima animi omnis optio aut. Voluptas nesciunt fuga dicta voluptas tempora ipsum atque. Qui occaecati mollitia id veniam.

Necessitatibus asperiores facilis autem. Rerum soluta facere animi rerum voluptas ab. Reiciendis libero est error voluptas. Voluptatem et commodi eos.

Harum id qui dolor blanditiis aliquid voluptatibus accusantium. Omnis in repellat magnam ut molestiae. Debitis sequi laborum sunt iure saepe. Fugit sequi qui qui aut sapiente.

Career Advancement Opportunities

October 2026 Investment Banking

  • Evercore 01 99.5%
  • Moelis & Company 01 98.9%
  • JPMorgan 01 98.4%
  • Morgan Stanley 07 97.9%
  • Guggenheim Partners 01 97.4%

Overall Employee Satisfaction

October 2026 Investment Banking

  • Moelis & Company No 99.5%
  • Morgan Stanley 02 98.9%
  • Evercore 01 98.4%
  • Banco Santander 02 97.9%
  • BMO Capital Markets 12 97.4%

Professional Growth Opportunities

October 2026 Investment Banking

  • Evercore 01 99.5%
  • Moelis & Company 01 98.9%
  • Morgan Stanley 05 98.4%
  • Goldman Sachs 01 97.9%
  • JPMorgan No 97.4%

Total Avg Compensation

October 2026 Investment Banking

  • Vice President (16) $429
  • Associates (56) $261
  • 3rd+ Year Analyst (8) $210
  • 2nd Year Analyst (28) $184
  • Intern/Summer Associate (16) $161
  • 1st Year Analyst (84) $151
  • Intern/Summer Analyst (76) $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

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...”