1/Rp = 1/100 + 1/250 + 1/400
I know the answer is:
1/Rp = 60 + 24 + 15/6000 ohms
Rp = 6000 ohms/99 = 61 ohms
I just have no clue where these numbers are coming from!
Question: Determine the net resistance of 100 ohms, 250 ohms and 400 ohms connected in a parallel.
I have no clue how to figure this out. I have read and reread the section in my book and it is not helping. Please help.