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SSC CGL

SSC CGL Tier II level Solved Question Set 25 on mixture or alligation 2

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This is the 25th set of solved questions of 10 practice problem exercise for SSC CGL Tier II exams and 2nd on purely mixture or alligation problems. The questions are followed by answers and then the detailed conceptual solution with explanation. The solutions should be referred to only after attempting the questions...

Algebraic proof of Least value of sum of reciprocals for any number of positive variables

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The result of the least value of sum of reciprocals, used in Algebra represents an important principle of value sharing.

For two positive real variables $a$ and $b$ for example, if $a+b=1$, the least value of sum of reciprocals of $a$ and $b$ will occur when the value of the sum 1 is shared equally between the two variables. This remarkable equal value sharing principle hold true for any number of variables as well as for any positive sum of the variables...

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