Question 1152231
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In English, there is NO such phrase  "7 times more . . . than".



My statement LITERALLY MEANS that these words do mean NOTHING in English;


so the entire post and the entire problem MAKE NO SENSE.


I understand that you translate from other language, but posting to this forum, it is YOUR RESPONSIBILITY and YOUR DUTY

to provide a correct, precise and non-ambiguous formulation/input.



Have a nice day (!)



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By the way, for the similar problem, see my post and my notice to your formulation at this link


<A HREF=https://www.algebra.com/algebra/homework/Average/Average.faq.question.1152153.html>https://www.algebra.com/algebra/homework/Average/Average.faq.question.1152153.html</A>


https://www.algebra.com/algebra/homework/Average/Average.faq.question.1152153.html