Question

without using the formula for the nth term, find which term of the AP: 5, 17, 29, 41,..... will be 120 more than its 15th term . Justify your answer.​

Answer 1

thinks so this can be the answer

Answer 2

Hey mate here is your answer ❤️

25 term is 120 more than 15th term

AP= 5,17,29,41

d= 17-5=12

d=12

Let us assum that the X term is 120 more than 15th term

The difference between xth term and 15th term =(x-15)*d

Given that the difference is 120 so

(x-15)*d=120

(x-15)*12=120

x=120/12+15=25

So 25th term is more than 15th term

Hope it will help you ☺️☺️