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JEE Main 2012 Mathematics question

MathematicsSequence and SeriesJEE Main 2012

If the A.M. between and terms of an A.P. is equal to the A.M. between and terms of the same A.P., then p + q is equal to

Answer: (4)

Solution

and similarly for r, s. Equality (d ≠ 0) gives p + q = r + s, option (4).

Question ID VK-103688