What was the question for this implicit rationale, and corresponding answer?
To find the weight of the smallest frog, 120 pounds / 10 = 12 pounds for the smallest frog. The difference is 120 - 12 = 108 pounds.
 The answer: 108
The question: The largest frog can grow to weigh 10 times as much as the smallest frog. The largest frog weighs 120 pounds. How much more does the largest frog weigh than the smallest frog?