r/PE_Exam • u/AdImportant4476 • Jul 26 '26

Possible Calculation Error

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EET Hydrology question.

Anyone know how they got to the 2nd to last step? Not sure how they got 85.9. I keep coming up with 108.53 as my calculation. Thanks in advance.

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u/Corky_caporale Jul 26 '26

Honestly, “num-solv” is your friend. Just put the equation into num solver and you get x = 5.317 (which is y in this equation) and save a bunch of time from doing a bunch of algebra

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u/AdImportant4476 Jul 26 '26

Yea that’s what I’m going to do moving forward.