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Question

The first term of a harmonic is 17 and the second term is 19. The 12th term is


A

119

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B

129

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C

117

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D

127

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Solution

The correct option is B

129


Here first term of A.P. be 7 and second be 9, then 12th term will be 7 + 11 ×2 = 29

Hence 12th term of the H.P. be 129.


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