The number of bacteria in 25g sample is 1.225*10^8
Data;
To find the number of bacteria in 25g, we just need to multiply the number of bacteria in 1g by 25. This implies that the bacteria increase in a multitude of 25.
[tex]1g = 4.9*10^6\\25g = x[/tex]
Let's cross multiply both sides and solve for x
[tex]1g =4.9*10^6\\25g = x\\x = 25 * 4.9*10^6\\x = 122,500,000\\\\x = 1.225*10^8[/tex]
The number of bacteria in 25g sample is 1.225*10^8
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