Practice Problem 2.12 Fundamental of Electric Circuits (Alexander - Sadiku)

Alexander Sadiku 5th Ed: Fundamental of Electric Circuits Chapter 5:
Alexander Sadiku 5th Ed: Fundamental of Electric Circuits Chapter 6:
Alexander Sadiku 5th Ed: Fundamental of Electric Circuits Chapter 7:

[EASYCHEESY_TFT]

Can't we make the parallel resistors 12//6=4Ω and 10//40=8Ω and then with a voltage divider find the voltage in each resistor when the parallel ones will have the same voltage?

[MuhammadUsman-fnvq]

Sir appreciate you efforts...these videos are helping me a lot

[Binfaisal]

Thanks a lot for the explanation, appreciate your efforts...
It would be better if you remove the background music, it's really annoying.

[zhtkiex]

how did it get to 60-2Va/12 and so on, sir?

[md.shazidalhasan]

it should be instead of mW. Thanks for your videos.

[foolscomedyms]

Sir the answer given in the book is correct for There is an order of 10 mistake...