The marked price of an article is ₹240. A shopkeeper sells it by allowing 18% discount on its marked price and still gains 23%, What is the cost price (in ₹) of the article?

200 180 160 150

160

CP                    MP    (100 - D%)           (100 + P%)    (100 - 18%)           (100 + 23%)       (82)                      (123)       (2)             :         (3) 3x = 240 2x = CP = 160