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प्रश्न
Diameter of Earth is 12756000 m. In 1996, a new planet was discovered whose diameter is `5/86` of the diameter of Earth. Find the diameter of this planet in km.
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उत्तर
Given, Diameter of the earth = 12756000 m
= `12756000/1000`
= 12756 m
According to the question,
Diameter of new planet = `5/86` of diameter of earth
= `5/86 xx 12756`
= `63780/86`
= 741.62 km
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