Correct Answer: Rs. 25
Explanation:
Let the C.P. be Rs. x Then, S.P. when gain is 12% = 12x / 100 ∵ 112x / 100 - 88x / 100 = 6 ⇒ 24x / 100 = 6 ⇒ x = 600 / 24 = Rs. 25