Considering a situation where Ram told Shyam that he has returned back to Earth after spending one year on Mars. But, he has spent 687 days on Mars, then how can he say that he had spent one year on Mars?

A year is of 687 days on Mars.

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Mars takes 687 days to complete its revolution around the Sun.

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Ram took 687 days to reach Mars.

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(a) and (b) above.

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Solution

The correct option is D (a) and (b) above.
Since Mars is at a greater distance from the Sun than Earth is, it has a bigger orbit with longer period of revolution. It takes around 687 days for Mars to complete one revolution around the Sun, and thus, a year lasts for 687 days on Mars.

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Considering a situation where Ram told Shyam that he has returned back to Earth after spending one year on Mars. But, he has spent 687 days on Mars, then how can he say that he had spent one year on Mars?

The correct option is D (a) and (b) above.Since Mars is at a greater distance from the Sun than Earth is, it has a bigger orbit with longer period of revolution. It takes around 687 days for Mars to complete one revolution around the Sun, and thus, a year lasts for 687 days on Mars.

The correct option is D (a) and (b) above.
Since Mars is at a greater distance from the Sun than Earth is, it has a bigger orbit with longer period of revolution. It takes around 687 days for Mars to complete one revolution around the Sun, and thus, a year lasts for 687 days on Mars.