Question

If the number of n - 5, 4n - 4 and 5n - 1
in AP find the value of n

Answer 1

4n-4-(n-5)=5n-1-(4n-4)
4n-4-n+5=5n-1-4n+4
3n+1=n+3
2n=2
n=1

Answer 2

hope ur doubt was cleared