At the zoo the reptile house contains only snakes and lizards. For every 3 snakes there are 2 lizards. There are 100 animals in the reptile house. How many lizards are there?

Answer 1

Let the number of snakes be 3x and the number of lizards be 2x.

Since there are 100 animals in total, we can set up the equation:
3x + 2x = 100
5x = 100
x = 20

So, the number of lizards is:
2x = 2(20) = 40

Therefore, there are 40 lizards in the reptile house.