Maths-
General
Easy
Question
Let
be A.P and
be in H.P If
and
the 
- 2/3
- 4
- 9
- 6
Hint:
The harmonic progression is formed by taking the reciprocal of the terms of the arithmetic progression. If the given terms of the arithmetic progression are a, a + d, a + 2d, a + 3d, ...., then the terms of the harmonic progression (or harmonic sequence) are 1/a, 1/(a + d), 1/(a + 2d), 1/(a + 3d), 1/(a + 4d),...... Here a is the first term and d is a common difference. Both a and d have non-zero values.
The correct answer is: 6
Given :
are in AP and
are in HP
Also :
and 
To Find : 

We know that in Harmonic Progression the terms of the harmonic progression (or harmonic sequence) are the reciprocal of the terms of the arithmetic progression.
If,
are in HP

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