Sequence And Series Question 644

Question: The first term of a harmonic progression is 1/7 and the second term is 1/9. The $ 12^{th} $ term is

[MP PET 1994]

Options:

A) 1/19

B) 1/29

C) 1/17

D) 1/27

Show Answer

Answer:

Correct Answer: B

Solution:

Here first term of A.P. be 7 and second be 9, then $ 12^{th} $ term will be $ 7+11\times 2=29 $ . Hence $ 12^{th} $ term of the H.P. be $ \frac{1}{29} $ .