Bacteria Problem

Logic Level 1

A certain bacteria doubles every minute. A single cell was put in a properly sealed container. After 30 minutes, the container was already half full. How many minutes does it take the bacteria to fill up the container from start to finish?

60 31 59 45

Geo Ferrolino by Geo Ferrolino , 28, Philippines

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2 solutions

Logically speaking , since the bacteria doubles every minute and on the 3 0 t h 30^{th} minute the jar was half full,So on the 3 1 s t 31^{st} minute the jar would have been full.

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The question was asked that from start to finish

Sonal Singh - 5 years, 9 months ago

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Yeah so the jar is already full at the 31 st minute then why do you have to worry about the rest?

Athiyaman Nallathambi - 5 years, 9 months ago
Ali Qureshi
Jul 29, 2015

relation between minutes and number of bacteria is as follows N=2^t After 30 minutes N=2^30 and they occupy half of the available space so 2*2^30 (2^31)would occupy all the space. Hence to get 2^31 bacteria from the start t=31 minutes

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