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Mathematics

Algebra

Easy

Question

Let $a subscript 1 comma a subscript 2 comma a subscript 3 comma horizontal ellipsis midline horizontal ellipsis midline horizontal ellipsis$ be terms of an A.P. If $fraction numerator a subscript 1 plus a subscript 2 plus horizontal ellipsis horizontal ellipsis a subscript p over denominator a subscript 1 plus a subscript 2 plus horizontal ellipsis horizontal ellipsis a subscript 9 end fraction equals p squared over q squared comma p not equal to q$ then $a subscript 6 over a subscript 21$ equals

41/11
7/2
2/7
11/41

The correct answer is: 11/41

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