If Ra, Rb, and Rc are 20 Ω, 10 Ω, and 10 Ω respectively are connected in delta connection. The resistances R1, R2, and R3 in Ω of an equivalent star connection are
1
2.5, 5, 5
2
5, 2.5, 5
3
5, 5, 2.5
4
2.5, 5, 2.5
5
2.5, 2.5, 2.5
If Ra, Rb, and Rc are 20 Ω, 10 Ω, and 10 Ω respectively are connected in delta connection. The resistances R1, R2, and R3 in Ω of an equivalent star connection are