Question

the first three term of an ap are respectively (3y-1),(3y+5) and (5y+1),find the value of y

Answer 1

In AP : Difference b/w successive terms=constant
Therefore,3y+5-(3y-1)=5y+1-(3y+5)
3y+5-3y+1=5y+1-3y-5
6=2y-4
10=2y
Therefore,y=5

Answer 2

Here is ur answer....