Question 141837
l        l            1
---  = ---------- + --------
250    2,000,000      i

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If your equation is correct you can solve for "i":

1/i = [1/250] -[1/2mil]
1/i = [2mil - 250]/[500 mil]

Inverting both sides you get:

i = [500 mil]/[2mil-250]

i = [500 mil] / [1.5mil]

i = 333 1/3 million
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Cheers,
Stan H.