In following questions, one term in number series is incorrect.
Find out the incorrect number 121, 143, 165, 186, 209
Option:
A. 143
B. 165
C. 186
D. 209
Answer: C . 186
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Justification:
Each term of the series is increased by 22 to obtain the next term.
So, 186 is wrong and must be replacced by (165 +22) i.e. 187.
