Answer : 3 70% Explanation : Answer: C) 70% Explanation: Let C.P.= Rs. 100. Then, Profit = Rs. 320, S.P. = Rs. 420.New C.P. = 125% of Rs. 100 = Rs. 125New S.P. = Rs. 420.Profit = Rs. (420 - 125) = Rs. 295Required percentage = (295/420) * 100 = 70%(approx)

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