There are two rats on an island in late December.
The number of young produced in every litter is 6, and 3 of those 6 are females.
The original female gives birth to 6 young on Jan 1 and produces another litter of 6 new pups every 40 days thereafter as long as she lives.
Each female born on the island will produce her first litter 120 days after her birth and then produce a new litter every 40 days thereafter.
No rat dies in the 1st year.
What is the total number of rats by the following January 1st, including the original pair?
The number of young produced in every litter is 6, and 3 of those 6 are females.
The original female gives birth to 6 young on Jan 1 and produces another litter of 6 new pups every 40 days thereafter as long as she lives.
Each female born on the island will produce her first litter 120 days after her birth and then produce a new litter every 40 days thereafter.
No rat dies in the 1st year.
What is the total number of rats by the following January 1st, including the original pair?
