Question

An AP consists of 50 terms of which 3rd term is 12 and the last term is 106 find the 25 term​

Answer 1

QUESTION

An AP consists of 50 terms of which 3rd term is 12 and the last term is 106 find the 25 term.

ANSWER

Correct option is

Correct option isA

Correct option isA64

Correct option isA64a+2d=12

Correct option isA64a+2d=12a+49d=106

Correct option isA64a+2d=12a+49d=106⇒47d=94

Correct option isA64a+2d=12a+49d=106⇒47d=94⇒d=2

Correct option isA64a+2d=12a+49d=106⇒47d=94⇒d=2a+4=12

Correct option isA64a+2d=12a+49d=106⇒47d=94⇒d=2a+4=12⇒a=8

Correct option isA64a+2d=12a+49d=106⇒47d=94⇒d=2a+4=12⇒a=829th term : - 

Correct option isA64a+2d=12a+49d=106⇒47d=94⇒d=2a+4=12⇒a=829th term : - a+28d=8+56=64

Answer 2

$\bf\colorbox{red}{Answer:-}$

a + 2d = 12

a + 49d = 106

47d = 94

d = 2

a + 4 = 12

a = 8

25 Th term:-

a + 24 D = 8 + 50 = 58