Rhind Papyrus - 25
This is an old problem, which could be use to explain some maths' history, fractions and equations. The point is just think and write the equation. Solving is easy.
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mosquito & bee
Here is another maths puzzle with animals. This time can you solve mosquito & bee puzzle? Share this puzzle if you got the correct answer, thanks. 2x + y = 11 3x - y = 9
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