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If H1, H2 .....H20 be 20 harmonic means between 2 & 3, then

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If H1, H2 .....H20 be 20 harmonic means between 2 & 3, then \(\frac{H_1+ 2}{H_1-2} + \frac{H_{20}+3} {H_{20}-3}\) 

a. 20

b. 21

c. 40

d. 38

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Correct option is c. 40

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