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प्रश्न
The number of teeth and the age of a person vary ______
विकल्प
directly with each other.
inversely with each other.
neither directly nor inversely with each other.
sometimes directly and sometimes inversely with each other.
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उत्तर
The number of teeth and the age of a person vary sometimes directly and sometimes inversely with each other.
Explanation:
The number of teeth and the age of a person vary sometimes directly and sometimes inversely with each other, we cannot predict about the number of teeth with exactly the age of a person. It change with person-to-person.
Hence, sometimes directly and sometimes inversely with each other.
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