Multiplying Mice
After 18 weeks there will be a total of 170 mice.
Each of the 4 young females just born will have 8 babies in 9 weeks, making 32 babies; 16 of the babies will be male and 16 will be female.
The 16 females in those litters will have 8 × 16 = 128 babies.
In 18 weeks, Marco will have the 2 original mice (Whiskers and Oscarella) + 8 babies + 32 babies + 128 babies = 170 mice.
That's a lot of mice!
