(10) The bacteria in a culture grows by 5% in first hour and increases 10% in the second hour. If the count of the bacteria in a sample is 2500000, what will be the count of bacteria after 2 hours.
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After 1st Hour bacteria increase by 10%
therefore Count of bacteria after 1st hr=121000000+121000000×
100
10
=133100000
After 2nd Hour bacteria decrease by 10%
therefore Count of bacteria after 2nd hr=133100000−133100000×
100
10
=119790000
After 3rd Hour bacteria increase by 10%
therefore Count bacteria after 3rd hr=119790000+119790000×
100
10
=131769000
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