C) There are 20 small towns in a district. A group of 3 people have to be chosen from I of these towns. For this purpose, volunteers are solicited from all 20 towns. Find the minimum number of volunteers who must come forward.
C) There are 20 small towns in a district. A group of 3 people have to be chosen from I of these towns. For this purpose, volunteers are solicited from all 20 towns. Find the minimum number of volunteers who must come forward.
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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