I believe you are missing some of the question but heres what I think it is I think it is going to be 40+x=115 then solve from there
I’m also still at finding answer so keep calm and I will give answer
<h2>
Answer:</h2>
<u>Arithmetic progression</u>.
By this we can find the <u>common difference</u><u> </u>(d)and <u>sum of the series upto n terms</u> (Sn) and even <u>any particular number of the series</u>(Tn).
