SOLUTION: log base 5 of 20

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Question 416712: log base 5 of 20
Answer by anshu_a(16) About Me  (Show Source):
You can put this solution on YOUR website!
log5 20 = log5(5*4) = (log5 5)+(log5 4) = 1+log5 2^2 = 1+2log5 (2)
1+2(log10 2)/(log10 5)