What was the question for this implicit rationale, and corresponding answer?
Al weighs 146 + 38 = 184 pounds. Ben weighs 184 - 25 = 159 pounds. Carl weighs 159 + 16 = 175 pounds.
 The answer: 175
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The question: Al is 25 pounds heavier than Ben. Ben is 16 pounds lighter than Carl. If Ed weighs 146 pounds and is 38 pounds lighter than Al, find the weight of Carl.
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