IL1 = 10 log (I1/I0)
IL2 = 10 log (I2/I0)
IL1 - IL2 = 10 log [(I1/I0) - (I2/I0)]
= 10 log (I1/I2) {Remember the difference of logs is the log of the quotient}
105 = 10 log (I1/I2)
log (I1/I2) = 10.5
(I1/I2) = 3.2X 1010

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