The parallel combination of a 470 Ω resistor and a 680 Ω resistor is in series with the parallel combination of four 2 kΩ resistors. The total resistance is________?
A1,078 Ω
B778 Ω
C1,650 Ω
D77.8 Ω
Correct answer
B. 778 Ω
Explanation
The correct answer is 778 Ω.