Handshakes across two groups
At a networking mixer there are 6 analysts and 4 traders. Every analyst shakes hands with every other analyst and with every trader, but the traders - who all know each other - do not shake hands among themselves. How many handshakes occur in total?
Show hints (2)+
- Split into analyst–analyst, analyst–trader, and trader–trader pairs.
- Or take all pairs and subtract the trader pairs.
Answer
Reveal answer →Final answer
39
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Asked at: Timed Mental-Math & Sequences, Game-Based Aptitude