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7 votes
7 votes
I-ready math pls help

I-ready math pls help-example-1
User Sothy Lorn
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1 Answer

18 votes
18 votes
20 is the answer:

The shortest collection time in the after would be the minimum. This is 25.
The shortest collection time for before would also be the minimum. This is 45.

45 - 25 = 20
User Wizhi
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