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October 15th, 2016, 09:51 AM   #11
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Oh I see what the problem is.. OP changed the number from 24 to 25 w/o telling anyone.

post #2 is correct
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October 15th, 2016, 04:41 PM   #12
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Without telling anyone?

I think skipjack's explanation is enough. Now I just need to convert it to the algebraic form.
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October 15th, 2016, 07:53 PM   #13
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To saying easily, we set 1 person can do 1 unit of work in 1 day.

We lost 5 days for working, so we lose 5 x 12 = 60 units of work.
Those units of work should be completed by those additional people in the days after pause.

Therefore, if there are 5 days after pause , we need 60 / 5 = 12 people more.
If they're 6 days instead, we need 60 / 6 = 10 people more.

I think this may be an more clear way for question.
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October 16th, 2016, 07:20 PM   #14
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So, basically the calculation is $\displaystyle \frac{12\times(35-(24+5)+5)}{6}$?
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October 17th, 2016, 02:16 AM   #15
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Or it would be $\displaystyle \frac{12 \times 5}{35-(24+5)}$
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October 17th, 2016, 07:30 PM   #16
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If I want to state the question in equation form, is it $\displaystyle \frac{12+n}{12}=\frac{35-24}{35-(24+5)}$?
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October 18th, 2016, 01:41 AM   #17
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That's already correct, but in another way of thinking, I would prefer
$\displaystyle 12(35-24)=(12+n)[35-(24+5)]$
which is better to understand for me.
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October 18th, 2016, 07:30 PM   #18
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The problem is that this question was taught in the ratio lesson.
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October 19th, 2016, 03:37 AM   #19
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Oh I didn't noticed that. Then the last equation you wrote is correct.
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