Where should the two bridges be set in a 110 cm long wire so that it is divided into three parts and the ratio of the frequencies are 3 : 2 : 1 ?
(a) 20 cm from one end and 60 cm from other end
(b) 30 cm from one end and 70 cm from other end
(c) 10 cm from one end and 50 cm from other end
(d) 50 cm from one end and 40 cm from other end