The following diagram shows part of a closed electrical circuit. Find the electric resistance RXY of the part of the circuit shown between point X and Y.
1. RXY = 33 Ω
2. RXY = 35 Ω
3. RXY = 45 Ω
4. RXY = 25 Ω
5. RXY = 21 Ω
6. RXY = 31 Ω
7. RXY = 43 Ω
8. RXY = 23 Ω
9. RXY = 29 Ω
10. RXY = 7 Ω
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