Teaser Tuesday! December 9, 2014

Here's a twist on a riddle that I'm sure you're all familiar with. I hope you find it fun!

Note: If you could all please input your answers using the previously noted html code it will allow others to answer without having a spoiler. Copy it verbatim and do not stick any " or ' in your answer and it will work.

Question

The dean of a college and his wife decided to throw a party and invited N guest and their spouses. On the night of the party, all of the guests turned up with their spouses, and they all had a great time. When the party was concluding, the dean requested that all of his guests (including his wife, but not himself) write down the number of people they shook hands with and to put the numbers in a box. When the box was opened, he was surprised to find all integers from 0 to 2N inclusive.

Assuming that a person never shake hands with their own spouse and that no one lied, how many hands did the dean shake?

Good Luck!

3 Comments
 

Incidunt laudantium deleniti est et iure. Aut sit enim ut debitis rem accusamus suscipit. Sit sed hic ut quo aut vel animi. Animi et voluptas est dolores accusantium aut necessitatibus quaerat.

Nihil eligendi impedit adipisci nesciunt. Neque illum dolorem tempore odit quaerat. Laboriosam ea quia et sint id voluptates soluta. Consequuntur eius quaerat voluptas dignissimos nemo.

Career Advancement Opportunities

June 2026 Investment Banking

  • Evercore 01 99.4%
  • Moelis & Company 01 98.8%
  • JPMorgan 01 98.2%
  • Guggenheim Partners 01 97.7%
  • Morgan Stanley 07 97.1%

Overall Employee Satisfaction

June 2026 Investment Banking

  • Moelis & Company No 99.4%
  • Morgan Stanley 01 98.8%
  • Evercore 01 98.2%
  • BMO Capital Markets 12 97.6%
  • Banco Santander 01 97.1%

Professional Growth Opportunities

June 2026 Investment Banking

  • Moelis & Company No 99.4%
  • Evercore No 98.8%
  • Morgan Stanley 05 98.2%
  • JPMorgan No 97.7%
  • BMO Capital Markets 12 97.1%

Total Avg Compensation

June 2026 Investment Banking

  • Vice President (14) $434
  • Associates (43) $259
  • 3rd+ Year Analyst (8) $210
  • 2nd Year Analyst (22) $179
  • Intern/Summer Associate (13) $156
  • 1st Year Analyst (75) $151
  • Intern/Summer Analyst (65) $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
dosk17's picture
dosk17
98.9
6
GameTheory's picture
GameTheory
98.9
7
DrApeman's picture
DrApeman
98.9
8
Betsy Massar's picture
Betsy Massar
98.9
9
CompBanker's picture
CompBanker
98.9
10
Jamoldo's picture
Jamoldo
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...”