In a ponf there were 40 lotus plants. After a year the number rose to 56. Calculate the birth rate of the lotus plant.

Birth rate=56-40/40=2/5birthper year.
  • 2
16/40=4/10=2/5
  • 1
16/40=0.4
  • -3
16/40=0.4 offsprings per lotus per year
 
  • -1
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