Correct Answer: None of the these
Explanation:
Let C.P. = Rs. P S.P. = (C.P.) - (Loos) = P - P/7 = Rs. 6P/7 ∵ 6P / 7 = 144 ∴ P = (144 x 7) / 6 = Rs. 168 Hence, no Loss and no gain.