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Have you heard of Kumbhakarna, the brother of Ravana? He is famous for sleeping for half a year. Most people sleep about 8 hours a day. Then what part of a day is it? - Mathematics

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Question

Have you heard of Kumbhakarna, the brother of Ravana? He is famous for sleeping for half a year.

Most people sleep about 8 hours a day. Then what part of a day is it?

So what part of a year do they sleep? A person 60 years old must have slept ____________ years!!!

Answer in Brief

Solution

Yes, I have heard of Kumbhakarna, the brother of Ravana.

It is `8/24` = `1/3` part of a day.

People sleep for `1/3` part of a year.

A person 60 years old must have slept for,

`1/3` of 60

= `1/3 xx 60`

= 20 years.

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Chapter 4: Parts and Wholes - Parts and Wholes [Page 68]

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NCERT Math - Magic [English] Class 5
Chapter 4 Parts and Wholes
Parts and Wholes | Q 22 | Page 68
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