If a person sells an article for Rs. 400 gaining 1/4 of its CP , find the gain % ? Share with your friends Share 1 Manish Bharti answered this Let CP be x We are given , Gain = x/4 SinceTherefore, Gain = 25% 4 View Full Answer Prakhar Bindal answered this Let CP = xGain = x/4SP = CP+Gain400 = x+x/4 = 5x/4x = 400*4/5 = 320So Cost Price = Rs 320Now Gain% = Gain/CP * 100 = 80/320 * 100 = 25%So Gain% = 25%Hope This Helps 1