1.

The first 3 terms of Ap are 3y-1 3y+5 5y+1 respectively Find the value of y

Answer»

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



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