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Monthly Archives: August 2017
Puzzle #193: Smallville Telephones
This is a relatively simple puzzle from Mathematical Circles by Dmitri Fomin, Sergey Genkin and Ilia Itenberg. Please do share this with your children, they should enjoy this. In Smallville, there are 15 telephones. Can they be connected by wires … Continue reading
Solution to Puzzle #191: 1×4 Rectangular Stone Plates
This was one of my favorite puzzles, though slightly difficult. Unfortunately I got only one correct answer this time, from Suman Saraf. Well done Suman! The answer is “no”. Look at the unusual coloring of the 10×10 board above. Please … Continue reading
Puzzle #192: Too Many 6’s
This is another beautiful puzzle from A Moscow Math Circle, Week by Week Problem Sets by Sergey Dorichenko. The puzzle will require some manipulation of numbers, but is very solvable and you will be happy that you did it once … Continue reading
Solution to Puzzle #190: Escalator Race
This was a tricky puzzle – I received two correct answers, one from Prakhar and another one from Suman Saraf. Thank you both! Answer is that they will reach at the same time, provided certain conditions are met, see the … Continue reading
Puzzle #191: 1×4 Rectangular Stone Plates
This is a gem of a puzzle from A Moscow Math Circle, Week by Week Problem Sets by Sergey Dorichenko. Can a 10×10 square be paved with 1×4 rectangular stone plates? As always, please send your answers as comments within … Continue reading
Solution to Puzzle #189: Blue Eyed Sisters
This was a simple puzzle, and I got correct solutions from Praneeth, Prartik Poddar and Suman Saraf. Well done all. I am borrowing the answer from Suman. For this, the most likely answer is 3 blue eyed out of 4 … Continue reading
Puzzle #190: Escalator Race
I cannot stop loving the book A Moscow Math Circle – Week by week problem sets by Sergey Dorinchenko. So here is another one from this great collection. Anisha and Arushi are riding down an escalator. Halfway down the escalator, … Continue reading
Solution to Puzzle #188: Jars and Paints
Apologies for late posting of the solution to this puzzle, but better late than never! This puzzle was similar to one of the first puzzles I posted (Milkman and the Three Jars – https://alokgoyal1971.com/2013/02/03/puzzle-2-milkman-and-the-three-jars/). I received correct answers from Suman Saraf … Continue reading
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