Four resistances 80 ω, 50 ω, 25 ω and R are connected in ___

Four resistances 80 ω, 50 ω, 25 ω and R are connected in parallel.

Current through 25 ω resistance is 4 A.

Total current of the supply is 10 A.

The value of R will be

A. 66.66 ω
B. 40.25 ω
C. 36.36 ω
D. 76.56 ω

Show Answer

Answer: C

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