Question

which term of April 3,8,13,18,,,,88

Answer 1

a=3,d=5,an=88,n=?
$88 = 3 + (n - 1)5 \\ 88 = 3 + 5n - 5 \\ 88 = - 2 + 5n \\ 88 + 2 = 5n \\ 5n = 90 \\ n = 18$