Jack has been driving for the past 9 years. He drives 37,000 miles every four months. How many miles has Jack driven since he started driving? Let's think first. Chain of thought:
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There are 12 / 4 = 3 four month groups in a year. Jack drives 37,000 * 3 = 111,000 miles in a year. Jack has driven 111,000 * 9 = 999,000 miles since he has started driving.
Therefore, the answer is 999000.
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