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MATH / One day, 45 frogs were captured from a pond, marked and then returned to the…

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problem

One day, 45 frogs were captured from a pond, marked and then returned to the pond. The next day, 40 frogs were observed in the pond, of which 10 had been marked the previous day. Assuming the marked frogs are equally distributed among all the frogs in the pond, what is the best estimate of how many frogs live in the pond?

level

Level 5

type

Prealgebra

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