Question

Mean generation time is 2 hr.If number of bacteria present after 24 hr is 4.1 * 10 .Find initial number of bacteria present

Answer 1

A population of 500 E. coli bacteria doubles every 15 minutes. Use this information to find an expression for this population growth. Using this expression, find what the population would be in 87 minutes. Use an exponential model.  

so we're supposed to use P(t)= (Po)(e)^kt

so P(o) would be 500,