May 27, 2017

Imagine you went out to dinner with a group of nine friends. You enjoyed the dinner a lot, talking about sports and silly things. At the end of the dinner, your group gets the check. Below you see the value of the meal that each person ate. The question is: how much sh...

May 20, 2017

Depending on your favorite strand of English you may write 'optimise' or 'optimize'.  But don't worry about the spelling, instead think about how often you use this word? What does 'optimization' mean for you? Here is one definition: "make the best or mo...

May 13, 2017

"I don't cut corners", he announced proudly. "I do everything by the book!". "Good for you", I replied with a grin. I then continued, "actually, did you know that by cutting corners you can save up to 29%?"

He looked at me with an agitated and surprised look. "Wher...

May 7, 2017

How hard is it to grasp open problems in mathematics? Do you need to be an adult, a genius or a research mathematician to enjoy pondering such problems? Or can a curious young person be an investigator as well?

By an “open problem”, I mean a problem in mathematics that...

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