A colony of bacteria is grown under ideal conditions in a laboratory so that the population increases expo-nentially with time. At the end of 3 hours there are 10,000 bac-teria. At the end of 5 hours there are 40,000. How many bacteria were present initially?

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Sequence and Series

A sequence is defined as a collection of things. Series is defined to sum the things one by one in the sequence.  It was invented by German mathematician Carl Friedrich Gauss.