Let's represent the ages of the animals as follows:
Crocodile: x years Elephant: x + 33 years Salmon: x + 70 years Turtle: x + 70 years
Given that the elephant lives to be 100 years old, we can write the equation: x + 33 = 100 x = 100 - 33 x = 67
Therefore, the ages of the animals are: Crocodile: 67 years Elephant: 100 years Salmon: 67 + 70 = 137 years Turtle: 67 + 70 = 137 years
The animal that lives the longest is the salmon and the turtle, as they both live for 137 years. The crocodile lives for 67 years less than both salmon and turtle, and the elephant lives for 33 years longer than the crocodile.