Maths / Arithmetic Progression / Finding The Value of N When Nth Term and AP is Given

QUESTION

The number of terms in the series 11, 15, 19, __________ , 211 is

 OPTIONS A. 49 B. 50 C. 51 D. None of these
Right Option : C

EXPLANATION
Explain TypeExplanation Content
Text

$a_n=211=11+(n-1)X4\Rightarrow n=51$

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