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All patients who go to the aesthetic clinic are subjected to a rigorous control in which they are weighed. In one week the average weight of the men who attended the consultation has been 90 Kg., While the average weight of women has been 65 Kg. If we average all weights counting men and women we gives 75 kg

If 60 men attended that week, **How many women were visited?**

#### Solution

If we call **x** the men who have come and **Y** Women get the following equation:

where we get 15x - 10y = 0 and simplifying 3x - 2y = 0, therefore: x / y = 2/3. If we know that 60 men attended, we deduce that **90 women visited**.

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