A Delta-connected network with its Wye-equivalent is shown in the given figure is. The resistance R1, R2 and R3 (in ohms) are respectively
1.5, 3 and 9
3, 9 and 1.59, 3 and 1.5
9, 3 and 1.5
3, 1.5 and 9
how Rac became 25