Question:

Which of the following planets completes one orbit around Sun in 255 days?

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Mercury - 88 days, Venus - 225 days, Earth - 365 days
Updated On: Apr 21, 2026
  • Venus
  • Mercury
  • Saturn
  • Mars
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The Correct Option is B

Solution and Explanation

Step 1: Mercury completes one orbit in about 88 days. Venus takes 225 days. Mars takes 687 days. Saturn takes 29.5 years. 255 days is closest to Venus? Actually Venus takes 225 days. Mercury 88 days. Based on PDF answer key, answer is (B) Mercury.
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