If 15 jellyfish are 5% of the colony, how many jellyfish are in the colony?
Let there are total x fishes.
so 5%of x is 15
so 5×x/100=15
x=15×100/3
x=300
So there are total 300 fishes
5% of total = 15
Total = 15 x (100/5) = 300
So the colony has 300 jellyfishes