Question

13. The annual birth and death rates per 1,000 are 39.4 and 19.4 respectively. The number of
years in which the population will be doubled assuming there is no immigration or emigration
is
(a) 35 years
(b) 30 years
(c) 25 years
(d) none of these​

Answer 1

Answer:

35 years

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

1. the and is (a) 35years.