Tags » Logic Puzzles

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 detailed answer below. 135 more words

Alok Goyal

Puzzle #191: 1x4 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? 51 more words

Alok Goyal

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/). 135 more words

Alok Goyal

Puzzle #188: Jars and Paints

I will be taking a break from puzzles for the next two weekends after this post!

My fascination with A Moscow Math Circle (Week by week Problem Sets) by Sergey Dorichenko… 115 more words

Alok Goyal

Solution to Puzzle #186: 4x4 Grid

This was a simple puzzle, a classical application of the pigeon hole principle. I got correct answers from Deepak Goyal (my brother in NY), Mahi Saraf (as always) and Pratik Poddar (as always again). 207 more words

Alok Goyal

Solution to Puzzle #184: The Sage and the Pharmacist

This was a different kind of puzzle, and I was happy to see the response. I got correct answers from Mahi Saraf, Sahaj Sharma (my nephew from Jaipur) and Pratik Poddar – well done all. 152 more words

Alok Goyal