In a zoo, the ratio of adults to children is 3

Question

to 12
. If there are 255
people in the zoo, how many children are there?

Answer 1

The ratio of adults to children is 3:12, which can be simplified to 1:4 by dividing both sides by 3.

So for every 1 adult, there are 4 children.

Let the number of adults be x. Then the number of children is 4x.

We know that the total number of people in the zoo is 255:

x + 4x = 255

5x = 255

x = 51

So there are 51 adults and 4x = 4(51) = 204 children in the zoo.