1.

Let{a_(n)}be an A.P with common difference d(d !=0 ) , {b_(n)}be a geometric progression withcommon ratio q, q is a positive rational number . If a_(1)=d, b_(1)= d^(2)and (a_(1)^(2)+a_(2)^(2)+a_(3)^(2))/(b_(1)+b_(2)+b_(3))is a positive integar , then q equals

Answer»

`1//4`
`1//3`
`1//2`
NONE of these

ANSWER :C


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