If the cost of a dozen soaps is Rs 153.60, what will be the cost of 15 such soaps ? [In unitary method] Share with your friends Share 0 Amit Shukla answered this Dear Student, The cost of a dozen soaps = Rs.153.60Then, the cost of one soap = 153.6012=Rs.12.8Now,the cost 15 soap= 12.8×15 =Rs.192 Regards. 0 View Full Answer