Page No.Date:IAn Af consists of So teams of ushich 3nd toim isis lob E

1.	Page No.Date:IAn Af consists of So teams of ushich 3nd toim isis lob Eind the onthten
Answer» Let a , d are first term and common difference of an A.P nth term = Last term = a + ( n - 1 )d an = a + ( n - 1 )d Now , It is given that , Third term = 12 a + 2d = 12 ------( 1 ) Last term = 106 a + 49d = 106 ---( 2 ) Subtract ( 1 ) from ( 2 ) , we get 47d = 94 d = 2 Substitute d value in equation ( 1 ) , We get a + 2 × 2 = 12 a = 12 - 4 a = 8 29th term = a + 28d a29 = 8 + 28 × 2 = 8 + 56 = 64

Page No.Date:IAn Af consists of So teams of ushich 3nd toim isis lob Eind the onthten

Answer»

Let a , d are first term and common

difference of an A.P

nth term = Last term = a + ( n - 1 )d

an = a + ( n - 1 )d

Now ,

It is given that ,

Third term = 12

a + 2d = 12 ------( 1 )

Last term = 106

a + 49d = 106 ---( 2 )

Subtract ( 1 ) from ( 2 ) , we get

47d = 94

d = 2

Substitute d value in equation ( 1 ) ,

We get

a + 2 × 2 = 12

a = 12 - 4

a = 8

29th term = a + 28d

a29 = 8 + 28 × 2

= 8 + 56

= 64