In a certain country, a person is born every 7 seconds and a person dies in every 13 seconds. Therefore, the birth and death rates account for a population growth rate of one person every----
Created: 6 years ago |
Updated: 3 years ago
best des
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7 second এ জন্মগ্রহন করে 1 জন
1 second এ জন্মগ্রহন করে 1/ 7 জন
একইভাবে 13 second এ মৃত্যবরণ করে 1 জন
1 second এ মৃত্যুবরণ করে 1/ 13 জন
growth in 1 second = ( 1/7 - 1/13) = 6 / 91
6/91 জন জন্মগ্রহন করে 1 sec
1 জন জন্মগ্রহন করে 91 / 6 second = 15. 17 second এ।
Md Azizur Rahman
Founder of Satt
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