In the bird park the ratio of the number of eagles to the number of parrots to the number of pelicans is 2:5:3. There are 78 more parrots than pelicans. How many eagles and parrots are there in the bird park?

Answer 1

Let's denote the number of eagles as 2x, the number of parrots as 5x, and the number of pelicans as 3x.

Given that there are 78 more parrots than pelicans, we can write the equation:
5x = 3x + 78
2x = 78
x = 39

Therefore, the number of parrots in the bird park is 5x = 5 * 39 = 195
And the number of eagles in the bird park is 2x = 2 * 39 = 78

There are 78 eagles and 195 parrots in the bird park.