You can put this solution on YOUR website! 6ln(1/5)/ln(1/25)
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Note:: ln(a)/ln(b) = lnb(a)
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Therefore::
6*ln(1/5)/ln(1/25) = 6*ln1/25(1/5)
Comment:: You want 6 times the power of (1/25) that gives you (1/5)
That power is 1/2 ; i.e. (1/25)^1/2 = 1/5
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Then the answer is 6*1/2 = 3
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Cheers,
Stan H.