In a pond there are 20 lotus plants last year and through reproduction 8 new plants are added, taking the current population to 28. What is the birth rate?

Question

In a pond there are 20 lotus plants last year and through reproduction 8 new plants are added, taking the current population to 28. What is the birth rate? (A) 0.28 offspring per lotus per year (B) 0.8 offspring per lotus per year (C) 0.32 offspring per lotus per year (D) 0.4 offspring per lotus per year

Tardigrade Admin · Accepted Answer

Rate= (Change in population/Orignal population)=(28-20/40) =(8/20) =0.4 individual per fruitfly per week

Q. In a pond there are $20$ lotus plants last year and through reproduction $8$ new plants are added, taking the current population to $28$ . What is the birth rate?

$0.28$ offspring per lotus per year

$0.8$ offspring per lotus per year

$0.32$ offspring per lotus per year

$0.4$ offspring per lotus per year

$R a t e = \frac{C han g e in p o p u l a t i o n}{O r i g na lp o p u l a t i o n} = \frac{28 - 20}{40}$
$= \frac{8}{20} = 0.4$ individual per fruitfly per week

Q. In a pond there are 20 lotus plants last year and through reproduction 8 new plants are added, taking the current population to 28. What is the birth rate?

0.28 offspring per lotus per year

0.8 offspring per lotus per year

0.32 offspring per lotus per year

0.4 offspring per lotus per year