JEE Mathematics Online Test Sequence and Series Set D

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Question 1

Question

If a, x, y, z, b are in AP, then x + y + z = 15 and if a, x, y, z, b are in HP, then 1/x + 1/y +1/z = 5/3 Numbers a,b are -

Answer
None of these
8, 2
11, 3
9, 1