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
Related Questions on Number System
Three numbers are in ratio 1 : 2 : 3 and HCF is 12. The numbers are:
A. 12, 24, 36
B. 11, 22, 33
C. 12, 24, 32
D. 5, 10, 15
Join The Discussion