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Brain Teasers | Screwy Pirates

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  Question :   Source: Google Five pirates  looted a chest full of  100 gold coin s . Being a bunch of democratic pirates, they agree on the following method to divide the loot: The most senior pirate will propose a distribution of the coins. All pirates. including the most senior pirate, who will then vote. If at least 50% of the pirates (3 pirates in this case) accept the proposal, the gold is divided as proposed. If not, the most senior pirate will be fed to the shark and the process starts over with the next most senior pirate... The process is repeated until a plan is approved. You can assume that all pirates are perfectly rational: they want to stay alive first and to get as much gold as the possible second. Finally, being blood-thirsty pirates, they want to have fewer pirates on the boat if given a choice between otherwise equal outcomes. How will the gold coins be divided in the end?      Solution:     Since the solution for 1 pirate ...
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Brain Teasers | Tiger and Sheep

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Question:   One hundred tigers and one sheep arc are put on a magic island that only has grass. Tigers can eat grass, but they would rather eat sheep Assume:    A. Each time only one tiger can eat one sheep, and that tiger itself will become a sheep after it cats the sheep.    B. All tigers are smart and perfectly rational and they want to survive. So will the sheep be eaten?      Solution :     Let no of tigers = n     Let's start with 1 tiger(n=1).   Since there is only one tiger it will definitely eat the sheep as there will be no more tigers to eat him once he becomes a sheep.       With n=2 tigers,   If any of the tigers eat the sheep, it will become a sheep itself so the other tiger who is left will definitely eat him. So none of the tigers will eat the sheep.     With n=3 tigers,   The sheep will be eaten since each tiger realizes that once it becomes a sheep there will be two tige...
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Case Study on Ride-Hailing App

Case Study: This is an open-ended case study asked around the reliability of ride-hailing service having decreased in a particular area. I had to suggest the data variables I will consider analyzing to solve the problem. Interviewer : The reliability of Ola cars has decreased in a particular area. What data parameters will you consider analyzing the problem? Priyanka : There were some clarifying questions that I asked to get more insights about the problem. How do you measure reliability exactly? Interviewer : Reliability would be a measure of Rides getting requested vs requests getting accepted i.e., Out of the requests accepted how many are actually completed. Priyanka : Ok since the platform has both driver and rider sides do you want me to focus on any specific one. Interviewer : You are free to choose. Priyanka : Ok I would like to think about the data variables that driver considers while accepting a ride: Distance/Length of trip  — Drivers won’t prefer short rides as they might...
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