OG12 -qn-157

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OG12 -qn-157

by kishokbabu » Fri Jan 06, 2012 12:18 pm
For any positive integer n, the sum of the first
n positive integers equals ((n(n+1))/2). What is the sum
of all the even integers between 99 and 301 ?

(A) 10,100
(B) 20,200
(C) 22,650
(D) 40,200
(E) 45,150
Source: — Problem Solving |

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