Experts please: DC CIRCUIT (PARALLEL-SERIES CIRCUIT) QUESTION

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suey
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1. Find the reading of the ammeter



2. I've 2 questions here:
Link to the Attachement please,thx.



3. I had made a simplified diagram, but wasn't sure of the calculation.

Help me out with a complete explanation please~! Thx so much!
 

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  • Circuit 1.jpg
    Circuit 1.jpg
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  • Circuit 2.jpg
    Circuit 2.jpg
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Show your attempted solution and you'll get help.

Hint: Use Kirchhoff's circuit laws
 
your simplified diagram is wrong. use kirchhoffs law, there is no shortcut, as it is neither a wheatsotone bridge nor symmetrical circuit.
 

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