Kishan sells an article to Kamal at a profit of 25%. Kamal sells it to Kamlesh at a profit of 10% and Kamlesh sells it for Rs. 231 to Karunesh to get a gain of 5%. What is the cost price at which Kishan bought the article ?
1
Rs. 180
2
Rs. 160
3
Rs. 140
4
Rs. 120
5
None of these