KaDarious

Scientist randomly caught 10 fruit bats at an orchard and marked them with tags and then released them. Later on, they caught 30 fruit bats at the same location and 6 of them had tags. Assuming the population stays the same, how many fruit bats live there...

Scientists randomly caught 30 monkeys in a rain forest. They put a tag on each monkey and then released it. 2 weeks later, they captured 20 monkeys in the same location and found that 4 had tags. Assuming the population of monkeys doesn't change, about ho...