CBSE Guess > Papers > Question Papers > Class XII > 2003 > Mathematics > Delhi Set -III
MATHEMATICS—2003 (Set III—Delhi)
Note: Except for the following questions, all the remaning questions have been asked in Set I, Set II .D. B., 2003.
SECTION - A
Q. 3. If show that
Q. 8. Evaluate:
Q. 13. In a correlation analysis, the following values are obtained about the variables
Predict the value of y when the value of x is 6.
Q. 15. Prove that:
Q. 16. Using matrix method, solve the following equations:
SECTION - B
Q. 20. Three forces P, Q and R acting at Q, the circumcentre of a triangle ABC, along OA, OB and OC are in equilibrium. Show that
Q. 25. Solve the following differentia equation:
SECTION - C
Q. 20. Calculate the first four moments of the following data about 5:
5, 7, 9, 3, 4
Q. 22. A merchant in London buys dollars when
and sells when it falls to
. If he makes a profit of
in the transaction, find his original investment.
Q. 23. A, B, C and D entered into a partnership. A, B, C respectively subscribed part of the capital and rest was subscribed by D. D is working partner and gets 4% of the total profit for that. The rest is divided amongst A, B, C and D in the ratio of their capitals. Find the shares of A, B. C and D in a total annual profit of Rs. 10,00,000.
CBSE 2003 Question Papers Class XII