SOLUTION: if you could make 7 paper planes in 3 minutes how many minutes would it take to make 1900 planes?

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Question 846053: if you could make 7 paper planes in 3 minutes how many minutes would it take to make 1900 planes?
Found 2 solutions by psbhowmick, ewatrrr:
Answer by psbhowmick(878)   (Show Source): You can put this solution on YOUR website!
To make 7 paper planes it takes 3 minutes.
To make 1 paper plane it takes minutes.
To make 1900 paper plane it takes minutes.
Answer by ewatrrr(24785)   (Show Source): You can put this solution on YOUR website!
 

Hi,

Let x represent how many minutes it would take to make 1900 planes?

    | Cross Multiplying to solve

      x = 1900*3min/7 = 814.3 

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