Question

the nth term of the A. P 3,8,13,18,............is 148 .find n

Answer 1

In this AP
a=3
d=5
nth term=148
a+(n-1)d=148
3+(n-1)5=148
(n-1)5=145
n-1=29
n=30

Answer 2

Answer:

n = 30

Step-by-step explanation:

=> a = 3, d=5, an=148

=> an=a+(n-1)d

=> putting values in the formula

=> 148 = 3 + (n-1)5

=> 148-3 = (n-1)5

=> 145/5 = n-1

=> 29 = n-1

=> n=30

Hope it helps you :)