SOLUTION: Find a math question and an answer to it that seems to be right but is wrong because it makes an assumption not contained in the question. I have been thinking for a while and

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Question 713243: Find a math question and an answer to it that seems to be right but is
wrong because it makes an assumption not contained in the question.
I have been thinking for a while and this is very confusing

Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
How about this?
It takes one man to dig a 3 ft wide hole that is 10 ft deep 3 hrs
How many hours would it take 3 men to dig the same hole
Mathematically it would take just 1 hr with 3 men
BUT
There is no way you can get 3 men in 3 ft wide hole digging at the same time so it's a totally wrong assumption