The manufacturing cost of 10 articles is Rs. 150 Tax on each article is `6%` of the manufacturing cost. Transportation cost comes to Re. 1 per articles. By what per cent is the total cost more than the manufacturing cost ?

If 40 articles cost Rs. 180, the cost of 18 articles is:

If 20 articles cost ₹180, the cost of 15 articles is:

20 articles cost ₹ 100. What is the cost of 1 article ?

20 articles cost ₹ 100. What is the cost of 1 article ?

The cost price of an article is 40% of the selling price. What per cent of the cost price is the selling price?

The selling price of an article is 6/5 of the cost price. The gain per cent is

There are three house-hold articles. The cost of the first article is two-fifth the cost of the third article and the cost of the third article is twice the cost of second article. If the total cost of the three articles is Rs 228, then find the cost of the first article (in Rs)