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Poles and Strings

Math brain teasers require computations to solve.

 

Puzzle ID:#2356
Fun:*** (2.49)
Difficulty:*** (2.3)
Category:Math
Submitted By:KevThaDrinkKilla***
Corrected By:javaguru

 

 

 



You have two vertical poles. One stands at 6ft. 6in, the other at 7ft. 7in. From the top of each pole tie a string to the bottom of the other pole.

At what height do the two strings cross?

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Answer

42 inches.

You multiply the height of the two poles and then divide that by the sum of the two heights..

(78 x 91) divided by (78 + 91) = 42

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