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H.M. between and is
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a
119
b
118
c
117
d
116
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Correct option is A
H.M. between a and b is2aba+b=2(1/28)(1/10)1/28+1/10=119Similar Questions
Two possible observations have arithmetic mean 3 and geometric mean .If each observation is multiplied by 2, then harmonic mean will be
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