The age of the Earth is approximately 1.3×1017 seconds, and one year is approximately 3.2×107 seconds. Which of the following is closest to the age of the Earth in years?畮_PS出国考试答疑器_GMAT_提问

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题目：

The age of the Earth is approximately 1.3×10¹⁷ seconds, and one year is approximately 3.2×10⁷ seconds. Which of the following is closest to the age of the Earth in years?

畮

选项:

A、2.5×10⁹

B、4.1×10⁹

C、1.9×10¹⁰

D、2.5×10¹¹

E、4.1×10¹¹

答案:

B

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