Saturday, 9 November 2013

Tree Height Puzzle - Hint

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#154

Shaun was six years old when he marked a nail into his favorite palm tree to mark his height. 
Ten years later at age sixteen, Shaun returned to see how much higher the nail was. 
If the tree grew by 7 cms each year, how much higher would the nail be?

  Difficulty Level - 3/5

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  Hint : 

   Growth of tree.
  

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