A Company manufactures two types of novelty sovenirs made of plywood . Souvenirs of type A require 5 min each for cutting and 10 min each for assembling . Souvenirs of type B require 8 min each for cutting and 8 min each for assembling . There are 3 h 20 min available for cutting and 4 h for assembling . The profit is Rs 5 each for type A and Rs 6 each for type B souvenirs . How many souvenir of each type should the company manufacture in order to maximise the profit ?

A factor manufactures two types of screws, A and B. Each type of screw requires the use of two machines, an automatic and a hand operated. It takes 4 minutes on the automatic and 6 minutes on hand operated machines to maufacture a package of screw s A, while it take 6 minutes on automatic and 3 minutes on the hand operated machines to maufacture a package of screws B. Each machine is available for at the most 4 hours on any day. The manufacturer can sell a package of screws A at a profit of Rs. 7 and screws B at a profit of Rs 10. Assuming that he can sell all the screw he manufactures, how many packages of each type should the factory owner produced day in order to maximise his profit? Determine the maximum profit.

What are the type of cell division ? Give examples of each.

A first order reaction takes 40 min for 30% decompositon.

A manufacturing company makes two modeis A and B of a product. Each piece of model A requires 9 labour hours for fabricating and 1 labour hour for finishing. Fach piece of model B requires 12 labour hours for fabricating and 3 labour hours for finishing. For fabricating and finishing, the maximum labour hours available are 180 and 30 respectively. The company makes a profit of Rs. 8,000 on each piece of modal A and Rs. 12,000 on week maximum profit ? What is the maximum profit per week ?

Half life period of a first order reaction is 10min. Starting with initial concentration 12 M. The rate after 20 min is

A first order reaction takes 69.3 min for 50% completion. The time required for 80% completion of this reaction is :

(c) Name the two types of nutrient cycles with an example each.

Write three types of blood vessels. Give one important feature of each.

A cottage industry manufactures pedestal lamps and wooden shades, each requiring the use of a grinding cutting machine and a sprayer . It takes 2 h on grinding cutting machine and 3 h on the sprayer to manufacture a pedestal lamp . It takes 1 h on the grinding cutting machine and 2 h on the sprayer to manufacture a shade . On any day, the sprayer is available for at the most 20 h and the grinding cutting machine for at the most 12 h . The profit from the sale of a lamp is Rs 5 and that from a shade is Rs 3 . Assuming that the manufacture can sell all the lamps and should he schedule his daily production in order to miximize his profit ?