8. Sequences and Series
medium

श्रेणियों $ S_1=3+7+11+15+19+\ldots \ldots $ $ S_2=1+6+11+16+21+\ldots $ का $8$ वाँ उभयनिष्ठ पद है।

A

$150$

B

$151$

C

$152$

D

$153$

(JEE MAIN-2023)

Solution

$T _8=11+(8-1) \times 20$

$=11+140=151$

Standard 11
Mathematics

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