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Steel rods shrink 10% when cooled from furnace temperature to room temperature. If a tie rod is 80 in long at furnace temperature, how long is the cooled tie rod?

User Erikbozic
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1 Answer

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Given that the initial length of the rod is 80 inches.

And it shrinks 10% when cooled from the furnace.

Let the new length be x inches.

Then the length of the shrinked rod will be


\begin{gathered} x=[80-10\%\text{ of 80\rbrack inches} \\ x=[80-(10)/(100)*80\text{ \rbrack inches} \\ x=[80-8]\text{ inches} \\ x=72\text{ inches} \end{gathered}

Hence, the length of the shrinked rod will be 72 inches.

User Anisoptera
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