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Author Archives: Alok Goyal
Solution to Puzzle #30: Red, White and Blue Weights
This was a relatively difficult puzzle for many children, and I did not get too many responses. The only correct answer amongst the younger lot came from Smiti Mittal – congrats Smiti! I also got a correct answer from Ruchir, … Continue reading
Puzzle #30: Red, White and Blue Weights
Back to weights – Found this very nice puzzle in Mathematical Circus, by Martin Gardner (Chapter 11, Problem #6). This one was originally created by Paul Curry, who was also an amateur magician. You have six weights. One pair is … Continue reading
Solution to Puzzle #29: Scrambled Box Tops
This was a relatively simple puzzle, and as such I got a lot of answers, many of them within minutes of my posting the puzzle. This one was originally solved by Anisha, my 9 year old, on her birthday. I … Continue reading
Puzzle #29: Scrambled Box Tops
This is very cute puzzle, more like a quick teaser that can be a nice dining table puzzle. I was initially asked this puzzle by a friend of my daughter on her 9th birthday. I rediscovered the problem recently in … Continue reading
Solution to Puzzle #28: Cake Cutting
I got a relatively muted response to this puzzle, but some very interesting answers among them. Specifically, I want to congratulate Mayuri+Mehul, as well as Tishyaa for very innovative answers. Jyotsana Dube also sent a correct answer, but not universally … Continue reading
Puzzle #28: Cake Cutting
This is a puzzle that I have seen in many different sources, a nice geometry puzzle! Mary baked a rectangular cake. Merlin secretly carved out a small rectangular piece, ate it and vanished! The remaining cake has to be split … Continue reading
Solution to Puzzle #27: The 3 Matchstick Heaps
First of all, apologies for the delayed response to the puzzle, I was traveling outside the country on the past weekend. Thanks to everyone who tried this puzzle – I received one of the best responses to date from this … Continue reading
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Puzzle #27: The 3 Matchsticks Heaps
This puzzle is a nice and again a relatively easy one, and the beauty is that children and adults should both enjoy this one. I found this in a puzzle book I bought way back in 1985 – Mathematics can … Continue reading
Solution to Puzzle #26: Get to the number 14
This was a relatively simple puzzle and I got many answers immediately as if this were a buzzer round question. Even my 9 year old, gave me multiple answers in succession, in a bid to get to number 14 in … Continue reading
Puzzle #26: Get to the number 14
This is a relatively simple arithmetic puzzle, that I found interesting to do with my 9 year old. I picked this up from Mathematical Circles. Here is the puzzle: You begin with the number 458. You are only allowed two … Continue reading
Alok Goyal's Puzzles Page 