In a certain country, a person is born every 5 seconds and a person dies every 13 seconds, Therefore the birth and death rates account fora population growth rate of one person every---
A. 0.123sec
B. 9 sec
C. 8 sec
D. 8.125 sec
E. None of these
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সঠিক উত্তরঃ
D.
8.125 sec
Explanation:
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