Week 3 Puzzle: Search Logic
In this week's third and final episode of The Code, Marcus will be demonstrating the ability of maths to predict seemingly unpredictable events. From the identity of Jack the Ripper to the outbreak of the next flu epidemic, spotting the patterns that underpin events can allow us to produce accurate models of what will happen in the future.
On his trip to their London offices, Marcus learns about how Google can correlate a rise in certain search terms with an oncoming outbreak of the flu virus, or the rise of a pop sensation. By working through these relationships logically, Google are able to produce startlingly accurate predictions of future global trends.
It's this trip that has inspired our puzzle for week three. The puzzle below will test your ability to use logic and reasoning in order to deduce a currently unknown fact. We present: Search Logic. Get your pens and paper ready!
The grid below describes three people's internet searches: Ada, Bill and Chris. As you can see, each search took a certain amount of time. It's your job, using the information we've provided, to fill the grid in and answer the question at the bottom.
There were nine searches made in total. Each search was for one of the clues from one of the episodes of The Code. The nine searches were:
Episode One: Pi, Stars, Cicadas
Episode Two: Bubbles, Hex, Dice
Episode Three: Search, Hand, Flock
Each person searched for one clue per episode.
No search was repeated, either by the same person, or by a different person.
Everyone's first searches were from different episodes.
Episode Three's clues all took as many minutes to search for as there are letters in the search term. For example, "Three" would have taken five minutes.
Bill searched for his Episode Three clip first.
Ada did not search for "search".
The person who searched for "hand" also searched for "bubbles".
The "stars" search took 15 minutes and did not occur at the same time as the "hexes" search.
The person who searched for "cicadas" and "dice" spent 18 minutes in total searching.
If all the above is true, who searched for "Pi"?