If the first three terms of an AP are 3yif the first three terms of an ap respectively are 3y-1,3y+ 5 and 5y+ 1 find the value of Y
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take 3y-1=a
3y+5=b
5y+1=c
now substitute b-a=b-c
u will get the answer
3y+5=b
5y+1=c
now substitute b-a=b-c
u will get the answer
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