25x  = 5 হলে x এর মান কত ?  

A  1/2 

B  1/4 

C  1/3 

D  1 

Solution

Correct Answer: Option A

    25x  = 5     => (52 )x  = 5      => 52x   = 51        => 2x = 1      x = 1/2  

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