Using invertendo property of proprtion, 3 : 2= 6 : 4 is written as ____.
In aΔABC,if3∠A=4∠B=6∠C then A:B:C=?
(a) 3:4:6 (b) 4:3:2 (c) 2:3:4 (d) 6:4:3