In Question 2 above,if 1 part of ared pigment requires 75 mL of base,how much red pigment should we mix with 18 mL of base?

Parveen wated to make a temporary shelter for her car, by making a box - like structurer with tarpaulin that covers all the four sides and the top of the car (with the front face as a flap which can be rolled up). Assuming that the stiching margins are very small, and therefore neglible, how much tarpaulin would be required to make the shelter of height 2.5 m, with base dimensoins 4mxx3m?

In the given you see, the frame of a lampshede. It is to be covered with a decorative cloth. The frame has a base diameter of 20 cm and height of 30 cm. A margin of 2.5 cm is to be given for folding it over the top and bottom of the frame. Find how much cloth is required for covering the lampshade.

A manufacturer considers that men and women workers are equally efficient and so he pays them at the same rate. He has 30 and 17 units of workers male and female and capital respectively, which he uses to produce two types of goods A and B. To produce one unit of A, 2 workers and 3 units of capital are required while 3 workers and 1 unit of capitals required to produce one unit of B. If A and Bare priced at 100 rupeya and 120 rupeya per unit respectively,how should he use his resources to maximize the total revenue ? Form the above as an LPP and solve it graphically .

In Fig.13.12, you see the frame of a lampshade. It is to be covered with a decorative cloth. The frame has a base diameter of 20 cm and height of 30 cm. A margin of 2.5 cm is to be given for folding it over the top and bottom of the frame. Find how much cloth is required for covering the lampshade.

Nazima is fly fishing in a stream. The tip of her fishing rod is 1.8 m above the surface of water and the fly at the end of the string rests on the water 3.6 m away and 2.4 m from a point directly under the tip of the rod. Assuming that her rod to the fly) is taut, how much string does she have out(see fig)? If she pulls in the string at the rate of 5 cm per second, what will be the heriozontal distance of the fly from her after 12 seconds.

There are two types of fertilizers F_1" and "F_2 consists of 10% nitrogen and 6% phosphoric acid and F_2 consists of 5% nitrogen and 10% phosphoric acid. After testing the soil conditions, a farmer finds that he needs atleast 14 kg of nitrogen and 14 kg of phosphoric acid for his crop. If F_1 costs Rs. 6/kg and F_2 costs Rs. 5 kg. Determine how much of each type fertilizer should be used so theat nutrient requirements are met at a minimum cost. What is the minimum cost? Also show graphically.