1. In a certain country, a person in born every 5 seconds and a person dies every 13 seconds. Therefore the birth and death rates account for a population growth rate of one person every---

[DBBL Probationary Officer-2011 : 2011]

1. 0.123 sec

1

2. 9 sec

2

3. 8 sec

3

4. 8.125 sec

4

5. None of these

5
Answer
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