Biologists estimate that under ideal conditions, the

Biologists estimate that under ideal conditions, the population N(t) of a bacterial colony at time (minutes) is given by: N(t) = N0 . 2^kt Where N0 and k are positive constants. Suppose the colony contain 2,000 bacteria at time t = 0, and 10 min later if contains 5,000 bacteria. What is the population after 20 min? After one hours?