if ## a,b,c,d,e ## are positive real numbers, minimum value of [tex](a+b+c+d+e)( \frac{1}{a} +\frac{1}{b} +\frac{1}{c} +\frac{1}{d} +\frac{1}{e} )[/tex](adsbygoogle = window.adsbygoogle || []).push({});

(A) 25

(B) 5

(C) 125

(D) cannot be determined

My approach :

expanding the expression , i get

[tex]5+a( \frac{1}{b} +\frac{1}{c} +\frac{1}{d} +\frac{1}{e} )+ similar.terms.of.b,c,d,e[/tex]

I cant find any ways to make those expressions vanish .....and some hit and trial gives me ans as 25

but i also cant find any way to make them 20 .... :( ..

or is the answer cannot be determined ?

pls help ....i dont have the answer ...

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# B Minimum value

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