Question

Sum of the first n terms of 3+8+13+18+.... is​

Answer 1

Step-by-step explanation:

n = 30

Soln:

Given A.P is 3 , 8,13,18,_,_,_,____,148

Formula to calculate nth term

A(n) = a+ (n-1)d

148 = 3 +(n-1)5

here d = common difference in A.P =5

145= (n-1)5

29 = n-1

n = 30.

hope it helps ☺️

Answer 2

Step-by-step explanation:

$hope \: its \: help \: you$