CBSE Guess > Papers > Question Papers > Class XII > 2003 > Mathematics > Delhi Set -II
MATHEMATICS—2003 (Set II—Delhi)
Note: Except for the following questions, all the remaning questions have been asked in Set I. D. B., 2003.
SECTION - A
Q. 3. Differentiate log
Q. 7. Evaluate:
Q. 10. Prove that:
Q. 14. In a correlation analysis, the following values are obtained about the variables
Find the equations of line of regression of and the value of
Q. 17. Using matrix method, solve the following equations:
SECTION - B
Q. 19. Three forces of magnitude P, Q and R acting at a point are in equilibrium. The angle between P and Q is 1200 and between P and R is 90 0 . Show that
Q. 20. A train moving with a velocity of 90 km/hr is brought to rest in 3 minutes by applying brakes. Calculate the retardation produced and the distance traveled by the before it comes to rest.
Q. 24. Solve the following differentia equation:
SECTION - C
Q. 19. The first three moments of a distribution about the value 2 of the variable are 1, 16 and -40 respectively. Calculate the mean, variance and Also calculate the first three moments about the origin.
Q. 21. An exchange broker converted Rs. 1,00,000 into pound sterling when the Mumbai - London rate was 1.66 pence and sold out the proceeds when the rate fell to 1.62 pence. Find the percentage profit.
Q. 24. A, B and C entered into a business and contributed Rs. 36,000, Rs. 60,000 and Rs. 30,000 respectively. They had the understanding that after allowing of the profit to C as a Manager, the remainder will be shared amongst them in proportion to their contribution towards the capital. At the end of the year, C received Rs. 8,000. What was the total profit and how much did the other partners receive?
CBSE 2003 Question Papers Class XII