Question Number 104760 by mohammad17 last updated on 23/Jul/20
Answered by Dwaipayan Shikari last updated on 23/Jul/20
$${a}_{{n}} ={a}_{\mathrm{1}} +\left({n}−\mathrm{1}\right){d}=\mathrm{5}+\left({n}−\mathrm{1}\right)\mathrm{25} \\ $$$$\mathrm{130}=\mathrm{5}+\left({n}−\mathrm{1}\right)\mathrm{25} \\ $$$${n}=\mathrm{6} \\ $$