Question

Whivh term of the AP : 3, 8, 13, 18,... is 78​

Answer 1

Answer:

16th term

Step-by-step explanation:

Given,

a= 3

d= 8-3

d = 5

a+(n-1)d = 78

=> 3+(n-1) 5 = 78

=> (n-1)5 = 78-3

=> (n-1)5 =75

=> (n-1) = 75/5

=> (n-1) = 15

=> n= 15+1

=> n= 16

n=16