Question Number 95182 by i jagooll last updated on 23/May/20 | ||
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Answered by mr W last updated on 23/May/20 | ||
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$$\frac{\mathrm{1}}{{S}}+\frac{\mathrm{1}}{{S}+\mathrm{4}}=\frac{\mathrm{1}}{\mathrm{5}} \\ $$$${S}^{\mathrm{2}} −\mathrm{6}{S}−\mathrm{20}=\mathrm{0} \\ $$$${S}=\mathrm{3}+\sqrt{\mathrm{29}}\approx\mathrm{8}.\mathrm{4}\:{h} \\ $$ | ||
Commented by i jagooll last updated on 23/May/20 | ||
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$$\mathrm{thank}\:\mathrm{you}\:\mathrm{sir} \\ $$ | ||