AVERAGE
Ex.1:Find the average of all prime numbers between 30 and 50?
Sol: there are five prime numbers between 30 and 50.
They are 31,37,41,43 and 47.
Therefore the required average=(31+37+41+43+47)/5 199/5  39.8.

Ex.2. find the average of first 40 natural numbers?
Sol: sum of first n natural numbers=n(n+1)/2;
So,sum of 40 natural numbers=(40*41)/2 820.
Therefore the required average=(820/40) 20.5.

Ex.3. find the average of first 20 multiples of 7?
Sol: Required average ....etc

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Combining Breadth-First and Depth-First Strategies in Searching for Treewidth

Rong Zhou
Palo Alto Research Center
3333 Coyote Hill Road
Palo Alto, CA 94304


Eric A. Hansen
Dept. of Computer Science and Engineering
Mississippi State University
Mississippi State, MS 39762

Abstract Breadth-first and depth-first search are basic search strategies upon which many other search algorithms are built. In this paper, we describe an approach to integrating these two strategies in a single algorithm that combi ....etc

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161/2014
Maximum : 100 marks
Time : 1 hour and 15 minutes

1.Which constituent in the earth gives plasticity to mould bricks?
(A)Lime
(B)Magnesia
(C ) Silica ’
(D) Alumina

2.The distance from the optical centre to the principle focus of a lens :
(A)Radius of curvature
(B)Focal length
(C )Focus
(D)None of these

3.The study of static electricity ;
(A)Electronics
(C )Electrostatic
(B)Electrostatic Field 
(D)Electron gravity

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