The cost of an article depends on three items material, labour and other expenses. The cost n these items is in the ratio 3:4:1 respectively. If the cost of material as Rs. 22.50, find the cost of the article.

The cost of manufacturing a car is made up of three items; cost of materials,labour and overheads.In a year,the cost of these items were in the ratio 4:3:2. Next year the cost of materials rose by 10%, cost of labour increased by 8% but the overheads reduced by 5% .Find the increase percent in the price of the car.

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

Cost of 24 identical articals Rs. 108. Find the cost of 40 similar articles.

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)

The cost price and selling price of an article are in the ratio of 3 : 7. If the selling price is Rs. 700, then find the cost price

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

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