Answer :

1 microcentury = 10-6 × 100 years


= 10-4 years


= 10-4 × 365 days


= 10-4 × 365 × 24 × 60 minutes


= 52.56 minutes(approx.)


52.56 minutes = 1 micro century


1 minute = micro century


So by unitary method


100 minutes would be equal to


100 minutes = microcentury = 1.902 microcenturies.


The practical period lasts for 1.9 microcenturies.


On an average, a person sleeps for 8 hrs


8 hrs. = 8 × 60 mins


= 480 mins


Again applying unitary method,


480 minutes = microcenturies = 9.13 microcenturies


Roughly a person sleeps for 9.13 microcenturies.


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