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Probability of making a triangle

A stick of length 1 is divided randomly into 3 parts.
What is the probability that a triangle can be made with those three parts?

Baker and cakes

A baker sells on the average 20 cakes in one day. What is the probability that he
sells an even number of cakes on any given day? (We assume ...

The color of the bear

If a bear walks one mile south, turns left and walks one mile to the east and then turns left again and walks one mile north and arrives at its ...

Cubic of integer

Let x be an integer between 1 and 10^12, what is the probability that the cubic of x ends with 11?

Tags: number

Minimum Perimeter of an Inscribed Triangle

For any acute triangle ABC, consruct any inscribed triangle DEF such that D lies on BC, E lies on AC, and F lies on AB.

Is there a ...