Important Questions for CBSE Class 12 Mathematics Exam 2013
Find CBSE Board 2013 Class XII HOT Mathematics Questions. This CBSE Hot Class 12 Mathematics Question Paper 2013 will help you to built your basics and will be helpful to get better marks in CBSE class 12 Mathematics question paper 2013.
CBSE HOT Mathematics Questions for Class 12th Board Exam 2013, given here.
9. How many times must a man toss a fair coin, so that the probability of having at least one head is more than 80%?
10. Doctor recommended a diet for Ram ( a sick person) that contain at least 35000 units of vitamins, 55 units of minerals and 1800 calories. Two foods M and N are available at a cost of Rs. 6 and Rs. 5 per unit respectively. One unit of food M contains 200 units of vitamins, 1 unit of minerals and 40 calories, whereas 1 unit of food N contains 100 units of vitamins, 2 units of minerals and 40 calories. Find what combination of foods M and N should be used to have least cost, satisfying the requirements. Make it an LPP and solve it graphically.
12. A company sells two different products A and B. The two products are produced in a common production process which has a total capacity of 500 man hours. It takes 5 hours to produce a unit of A and 3 hours to produce a unit of B. The demand in the market show that the maximum number of units of A that can be sold is 70 and that of B is 125. Profit on each unit of A is Rs. 20 and on B is Rs. 15. How many units of A and B should be produced to maximize the profit? Form an L.P.P. and solve it graphically.