Answer:what do u need help with?
Step-by-step explanation:
Answer: 3 : 2
Step-by-step explanation:
Let A represents the total population of country A and B represents the total population of country B.
According to the question,

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But, Again according to the question,
The total population that claims that they are from A = one half of the total population of A and B.
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Where is X in the equation?
The answer is 12 but the way you get it is you subtract 400 from 1000 which gives you 600 then you divide 600 by 50 to get 12. So it looks like this 1000-400= 600, 600/50=12. Hope this helps. :)