The lengthy question of question exercise 4.2 of class 10th of question no.6. Sir please help me the best solution of this question. I want the simple and easy method of this question A cottage industry produces a certain number of pottery articles in a day. It was observed on a particular day that the cost of production of each article (in rupees) was 3 more than twice the number of articles produced on that day. If the total cost of production on that day was Rs.90, find the number of articles produced and the cost of each article.