## MA6566 DISCRETE MATHEMATICS 2marks 16marks

Anna University Regulation 2013 CSE MA6566 DM 2marks 16marks and CSE 5th SEM MA6566 Discrete Mathematics Short answers, Question Bank are listed down for students to make perfect utilization and score maximum marks with our study materials.

### PART B – (5 x 16 = 80 Marks)

12 (ii) Verify that validating of the following inference.
If one person is more successful than another, then he has worked harder to deserve success. Ram has not worked harder than Siva. Therefore, Ram is not more successful than Siva.
(ii) There are 2500 students in a college, of these 1700 have taken a course in C, 1000 have taken a course Pascal and 550 have taken a course in Networking. Further 750 have taken courses in both C an Pascal. 400 have taken courses in both C and Networking, and 275 have taken courses in both Pascal and Networking. If 200 of these students have taken courses in C, Pascal and Networking.
(1) How many of these 2500 students have taken a course in any of these three courses C, Pascal and Networking?
(2) How many of these 2500 students have not taken a course in any of these three courses C,
Pascal and Networking? (10)

Or
(b) (i)Using generating function solve

(ii) A box contains six white balls and five red balls. Find the number of ways four balls can be drawn from the box if
(1) They can be any colour
(2) Two must be white and two red
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