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ZDresearcher

[intro to calculation] pose problems N.-1

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so here we have :

1.- A certain amount of people have to pay in same parts a total of $72 000 dollars. If they would be 3 less people then each one will have to contribute with $4000 dollars more . How many people are?

come on guys I have confidence in you :)

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the answer is 9 smile.png win


May I ask how you came up with that answer? From your question, I generate the following equation

$perPerson = 72,000 / n
4000 = 72,000 / (n-3)

n = 72000/4000 + 3 = 21

So I thought the answer would be 21. Maybe my initial equation is wrong.

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May I ask how you came up with that answer? ...
So I thought the answer would be 21.


If they would be 3 less people

I thought this read as N-3, but what she really means is N/3 ("they would be 3 [times] less people").

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