Three unequal resistances are connected in parallel. Two of these resistances are in the ratio 
. The equivalent resistance of these three resistors connected in parallel is 
. What is the highest resistance value among these three resistances if no resistance is fractional?
Text Solution
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Let the resistances be 
and 
, respectively.
According to the question, equivalent resistance in parallel 
.
The equivalent resistance in parallel combination is given by
Let, 
If we check the option given in the question
Take 
It does not satisfy the condition
Take 
.
This value satisfy the equation.
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