Correct Answer: 20%
Explanation:
∵ S.P. = (90% of Rs. 480) = Rs. 432 Gain earned on it = 8% ∴ C.P. = Rs. (100/108) x 432 = Rs. 400 If no discount is allowed, S.P. = Rs. 480 ∴ Required gain% = (80 /400) x 100 % = 20%