Question

please help me in doing this sum​

Answer 1

a3 =5

a7 =9

a+2d = 5 ..........1

a+6d = 9 ...........2

0-4d = -4

d=1

put the value of d in eq 1

a+2d= 5

a+2*1=5

a=5-3

a=2

now find 17th term

a17 =?

a+16d =?

2+16=18

Answer 2

hope this helps you friend