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catchi7484
01.08.2019 •
Mathematics
If it takes 5 men to dig a ditch 10 long 1 1/2 hours, how long would it take 7 men to dig a ditch 10 feet long
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Ответ:
so the 5 men do the ditch in 1 and 1/2 hours, that means, each men worked 1 and 1/2 hours, now, we have 5 men, let's add all the "workhours" and is,
now, we know that is the total workhours do the the 10 feet ditch, what about 7 men doing it? well, the 7 men will have to cover those workhours, meaning each one will work
Ответ:
it may be C but I'm not sure