Answer :
if the ratio of monkeys to gorillas is 6:1
that means (1÷6)*30=5 gorillas
if the ratio of monkeys to chimpanzees is 5:2
that means (2÷5)*30=12 chimpanzees
that means (1÷6)*30=5 gorillas
if the ratio of monkeys to chimpanzees is 5:2
that means (2÷5)*30=12 chimpanzees