Mathematics, 12.11.2020 01:00 CadenClough13
The biologist captures 20 fish out of a small lake behind his college. He fastens a maker onto each of these and throws them bsck in the lake. A week later he again catches 20 fish. Of these 20 fish 2 have markers on them. How many fish could Dr. Ji estimate are in the pond ?
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The biologist captures 20 fish out of a small lake behind his college. He fastens a maker onto each...
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