Question

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

Answer 1

Answer:

$\huge{\underline{\mathtt{\red{A}\pink{N}\green{S}\blue{W}\purple{E}\orange{R}}}}$

a + 2d = 12

a + 49d = 106

47d = 94

d = 2

a + 4 = 12

a = 8

25 Th term:-

a + 24 D = 8 + 50 = 58

Answer 2

${\Huge{ \red{\underline{\underline{\bf{\maltese \pink{ Ànswer: \: }}}}}}}$

a + 2d = 12

a + 49d = 106

47d = 94

d = 2

a + 4 = 12

a = 8

25 Th term:-

a + 24 D = 8 + 50 = 58

$\huge\bold{\pink{Høpê } \green{ \: ït} \red{ \: hêlps }}$