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Sunday Afternoon Maths LX

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 Posted on 2017-07-02 

Bending a Straw

Two points along a drinking straw are picked at random. The straw is then bent at these points. What is the probability that the two ends meet up to make a triangle?

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Where is Evariste?

Evariste is standing in a rectangular formation, in which everyone is lined up in rows and columns. There are 175 people in all the rows in front of Evariste and 400 in the rows behind him. There are 312 in the columns to his left and 264 in the columns to his right.
In which row and column is Evariste standing?

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Tags: numbers
If you enjoyed these puzzles, check out Sunday Afternoon Maths LXI,
puzzles about proportion, or a random puzzle.
© Matthew Scroggs 2017