October 15th, 2016, 09:51 AM  #11 
Senior Member Joined: Sep 2015 From: USA Posts: 2,590 Thanks: 1434 
Oh I see what the problem is.. OP changed the number from 24 to 25 w/o telling anyone. post #2 is correct 
October 15th, 2016, 04:41 PM  #12 
Senior Member Joined: Nov 2010 From: Indonesia Posts: 2,001 Thanks: 132 Math Focus: Trigonometry  Without telling anyone? I think skipjack's explanation is enough. Now I just need to convert it to the algebraic form. 
October 15th, 2016, 07:53 PM  #13 
Newbie Joined: Oct 2016 From: Taiwan Posts: 10 Thanks: 2 
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. 
October 16th, 2016, 07:20 PM  #14 
Senior Member Joined: Nov 2010 From: Indonesia Posts: 2,001 Thanks: 132 Math Focus: Trigonometry 
So, basically the calculation is $\displaystyle \frac{12\times(35(24+5)+5)}{6}$?

October 17th, 2016, 02:16 AM  #15 
Newbie Joined: Oct 2016 From: Taiwan Posts: 10 Thanks: 2 
Or it would be $\displaystyle \frac{12 \times 5}{35(24+5)}$

October 17th, 2016, 07:30 PM  #16 
Senior Member Joined: Nov 2010 From: Indonesia Posts: 2,001 Thanks: 132 Math Focus: Trigonometry 
If I want to state the question in equation form, is it $\displaystyle \frac{12+n}{12}=\frac{3524}{35(24+5)}$?

October 18th, 2016, 01:41 AM  #17 
Newbie Joined: Oct 2016 From: Taiwan Posts: 10 Thanks: 2 
That's already correct, but in another way of thinking, I would prefer $\displaystyle 12(3524)=(12+n)[35(24+5)]$ which is better to understand for me. 
October 18th, 2016, 07:30 PM  #18 
Senior Member Joined: Nov 2010 From: Indonesia Posts: 2,001 Thanks: 132 Math Focus: Trigonometry 
The problem is that this question was taught in the ratio lesson.

October 19th, 2016, 03:37 AM  #19 
Newbie Joined: Oct 2016 From: Taiwan Posts: 10 Thanks: 2 
Oh I didn't noticed that. Then the last equation you wrote is correct.


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