Question

the population of a type of local dragonfly can be found using an infinite geometric series where a1= 65 and the common ratio is 1/6. find the sum of this infinite series tht will be the upper limit of this population.

Answer 1

Sum of infinite series of a GS is a1 / (1-r)

so here it is 65 / (1 - 1/6) = 65 / 5/6 = 65*6 / 5 = 78 answer