a bacterial cell divides every minute it was found that it filled the Petri plate in half an hour in how much time was the plate filled one fourth
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plate wil be filled one forth at 28 min
as next minute that is at 29 min the plate will be 2×1/4 = 1/2 qnd next minute that is 30 min the plate will be full whole ie 2×1/2 = 1
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