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Evander does not know how many tadpoles will hatch from the frog egg cluster in the pond and grow up to be frogs. His book says that one third of all the eggs won't hatch at all, and that half of the ones that do will be eaten by predators. Then, one fifth of those will not grow properly, due to one reason or another. If the cluster in the pond has 60 eggs, how many will probably grow up to be frogs?
- 10
- 16
- 12
- 20
