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UPSC NDA II 2023 Mathematics Solved Paper

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Question : 10

Total: 120

If (a+b),2b,(b+c) are in HP, then which one of the following is correct?

a, b and c are in AP
a−b,b−c and c−a are in AP
a, b and c are in GP
a −b,b−c and c−a are in GP

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