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According to a car sales statistics website, a certain car model sold 500 units in January 2021. February sales grew 20% month-on-month compared to January. Please calculate how many units were sold in February for this model.
A. 600 units
B. 400 units
C. 1100 units
D. 550 units
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Based on the month-on-month growth formula: (Current value - Previous value) * 100% / Previous value, plugging in (600-500)/500*100%=20%, the February sales is calculated to be 600 units.

根据题目提供的信息,2021年1月份某车型销售了500台。2月份的销售量相比1月份环比增长了20%。我们可以通过以下计算得出2月份的销售量:

1. 首先,计算1月份销售量的20%:
\[ 500 \times 0.20 = 100 \]

2. 然后,将这个增长量加到1月份的销售量上:
\[ 500 + 100 = 600 \]

因此,2月份该车型的销售量为600台。正确答案是A: 600 units。