Question 422281
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I'm trying to solve when a man knows he has lost 12.4 percent of his weight, 
and now weighs 249.6. What was his starting weight?
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        The solution in the post by @mananth is conceptually wrong and contradicts to common sense.

        Indeed,  according to his solution,  the original weight  (222.06 pounds)  is less than it was after loosing  (249.6 pounds).


        It means that @mananth does not read his solutions,  does not think about them and has no habit of self-checking.


        Very dangerous person to be a tutor and especially to be an online tutor  ( ! )


 
<pre>
Let 'x' be the man's original weight, in pounds.


After loosing 12.4%, his weight is  (x - 0.124x) = x*(1-0.124) = 0.876x  pounds.


We equate it to the new weight, 249.6 pounds.

So, your equation is

    0.876x = 249.6   pounds.


From this equation, we find

    x = {{{249.6/0.876}}} = 284.93  (rounded).


<U>ANSWER</U>.  The man's original weight was 284.93 pounds (approximately).
</pre>

Solved correctly.