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On a scale that measures the intensity of a certain phenomenon, a reading of n+1 corresponds to an intensity that is 10 times the intensity corresponding to a reading of n. On that scale, the intensity corresponding to a reading of 8 is how many times as great as the intensity corresponding to a reading at 3?
Looking for a good explanation for this one.
Besides I think the OG is wrong in stating that 10^8 - 10^3 = 10^5.