Question

Cassandra had a pair of mice. The female gave birth to eight pups, for male and four female. In the next term, the five female mice each gave birth to eight pups, again four male and four female. If, in the next term, each female does the same and no mice die, how many mice, male and female, will Cassandra now have?

Answer 1

The first pair
Male - 1
Female - 1

First generation by 1 female
Male - 4
Female - 4

Second generation by 5 females
Male - 4 x 5 = 20
Female - 4 × 5 = 20

Third generation by 25 females
Male - 4 × 25 = 100
Female - 4 × 25 = 100

Total males = 1 + 4 + 20 + 100 = 125
Total females = 1 + 4 + 20 + 100 = 125