the bacteria in a culture grows by 10% in the first hour, decreased by 10% in the second hour and again increases by 10% in the third hour. If the original count of the bacteria is sample 10,000 find the bacteria count at the end of 3 hour.
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Answered by
4
Answer:
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Step-by-step explanation:
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
Answered by
1
Answer:
2nd part of answer is in 3rd hour ,bacterias again increased by 10% so increase is 10% of 9900 i.e. 990 thrrefore at the end of 3rd hour bacterias are 9900+990=10890
Step-by-step explanation:
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