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Can You Solve This

Postby mycoding » Fri Dec 28, 2018 4:23 pm

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Re: Can You Solve This

Postby mycoding » Sat Dec 29, 2018 1:17 pm

Hello I am so sorry but the image above was incorrect and the correct one is below: :oops:

Image

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Re: Can You Solve This

Postby Guest » Mon Dec 31, 2018 1:08 am

all boxes-x ; number all days-a
a= :?:
x=120.a (1) ; x=90(a-6)+6.200 (2)
120a =90a-540+1 200
30a=660
a=22 days
We can also find x=2 640.
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