The sum of 100 terms of the series 1 - 3 + 5 - 7 + 9 - 11 .......... is:
A. 100
B. - 200
C. 200
D. - 100
Answer: Option D
Solution (By Examveda Team)
1 - 3 + 5 - 7 + 9 - 11 .......... + 197 - 199 = (- 2) + (-2) + (-2) + .......... + (-2) (50 times) = 50 × (-2) = -100This Question Belongs to Arithmetic Ability >> Number System
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