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Tag Archives: solution
Solution to Puzzle #11: The 10-digit number
I got the most number of correct answers for this puzzle. I was particularly impressed by Ameya Kulkarni (from London), Salil Kuchlous (from Bangalore) and Tishya Chaudhry and Anisha Sharma Goyal (both Gurgaon) – all kids who solved the puzzle. … Continue reading
Solution to Puzzle #10: Who is taller
I thought that this was a relatively simple problem – Most people gave me the correct answer, but I did not receive the correct proof for the answer from anyone. The answer is – the shortest of the tallest in … Continue reading
Solution to Puzzle #9 – Sailors, Monkey and Coconuts
Before I give the solution, I owe it everyone to reveal the original source, which appeared in Scientific American. Here is the exact source: Martin Gardner, Mathematical Games, Scientific American, April 1958. Martin Gardner, The Second Scientific American Book of … Continue reading
Solution to Puzzle #8: Maximizing the Odds
This one was a relatively simple puzzle, though not really for children below 12 years as they are not as familiar with the probability concept. I am not posting a video solution to this as there is not much value … Continue reading
Solution to Puzzle #7: Faulty Ball Continued
I need to begin with an apology – I have not been able to create a video solution to this puzzle as I seem to have misplaced the writing instrument for my iPad. Hence a written solution to this one, … Continue reading
Solution to Puzzle #6: Identifying the Faulty Ball
I was very happy to see many new “puzzle solvers” for this puzzle. I was particularly impressed with Aadi Kuchlous and Sahil Kuchlous who solved the 6 and the 9 balls puzzle respectively. Same is true for Arushi and Anisha … Continue reading
Solution to Puzzle #5: Crossing the Bridge
I did not get as many responses for this puzzle – I think people probably found it to be too easy. I was hoping that the kids would enjoy the puzzle. The answer is 17 minutes – check out the … Continue reading
Solution to Puzzle #4: Summing to 15
This was probably a more difficult problem that what I had anticipated this to be. I got much fewer responses for this compared the previous ones. This puzzle combined two different concepts – Magic Square using numbers 1-9 and the … Continue reading
Solution to Puzzle #3: Pirates and Looted Coins
Many people sent me the correct answers for this puzzle. Many people correctly pointed out that depending on how you interpret the behavior of the pirates, the answer could be different, and I must confess that the directions I gave … Continue reading
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