jandr
  • jandr
A captain is twice the age his ship had, when he was as old as his ship is now. Together they are 56 years old. How old is the captain?
Mathematics
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
x=captain,y=ship x=2y x-2y=0 x+y=56 slove it and get the age
jandr
  • jandr
Re-Read the question x != 2y
anonymous
  • anonymous
do you have any idea?

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jandr
  • jandr
re-read the question: together they are 56 years old. 112 + 56 != 56
anonymous
  • anonymous
let the age of captain be x , and the age of the ship be y , say let some z years before the captain be as old as the ship is now. this means x-z=y; but the captain is old as the age of the ship z years back , ie x=2(y-z); and x+y=56 ,now solve for x =44.8
jandr
  • jandr
you got the equasions right, but with them came to the wrong answer. If x=44.8, then y must be 56-44.8=11.2 and z must be x-y=33.6. Z years ago the thip was not built yet.
jandr
  • jandr
Apparently this question is too difficult for this audience :-(

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