The H.M. of the numbers 15,110,115,120,125,130,135 is

15,110,115,120,125,130,135H.M=75+10+15+20+25+30+35 =75×7×82 =120

The H.M. of the numbers 15,110,115,120,125,130,135 is

15,110,115,120,125,130,135H.M=75+10+15+20+25+30+35 =75×7×82 =120

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The H.M. of the numbers $\frac{1}{5}, \frac{1}{10}, \frac{1}{15}, \frac{1}{20}, \frac{1}{25}, \frac{1}{30}, \frac{1}{35}$ is

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Detailed Solution

$\begin{array}{rcl} \frac{1}{5}, \frac{1}{10}, \frac{1}{15}, \frac{1}{20}, \frac{1}{25}, \frac{1}{30}, \frac{1}{35} \\ H . M & = & \frac{7}{5 + 10 + 15 + 20 + 25 + 30 + 35} \\ = & \frac{7}{5 \times \frac{7 \times 8}{2}} \\ = & \frac{1}{20} \end{array}$