Question

write the nth term of 20, 40, 60, 80, 100

Answer 1

the of that question is 20n

Answer 2

Answer:

Ap: 20,40,60,80,100,................nth term

a=20 ,

d=a2-a1=40-20=20

d=20

an=a+(n-1)d

an=20+(n-1)20

an=20+20n-20

an=20n

nth term of Ap is 20n

hope it will help you