Question 1177936
.
Combined, there are 188 ​Asians, Africans,​ Europeans, and Americans in a village. 
The number of Asians exceeds the number of Africans and Europeans by 72. 
The difference between the number of Europeans and Americans is 13. 
If the number of Africans is​ doubled, their population exceeds the number of Europeans and Americans by 27. 
Determine the number of​ Asians, Africans,​ Europeans, and Americans in this village.
~~~~~


<pre>

x = As

y = Af

z = Eu

t = Am


The system of equation


    x + y + z + t = 188

    x - y - z     =  72

            z - t =  13

       2y - z - t =  27


Next, I use the free of charge online solver  www.reshish.com

to get the solution to this system.


<U>ANSWER</U>.  x= 125 (Asians);  y= 30 (Africans);  z= 23 (Europeans);  t= 10 (Americans).
</pre>

Solved.