Question

for what the value of n is the nth term of the following two ap is same 1. 1,7,13,19... 2.69,68,67....

Answer 1

An = an
A+(n-1)D = a+(n-1)d
1 +(n-1)6 = 69 +(n-1) -1
-68 +6n -6 = -n +1


I think the question is wrong