Question

South America butterfly at butterfly park is 5:3 and Europe Butterflies are 3:2 and 30 North America at butterfly park. How many South America butterfly are there and how many European butterfly are there

Answer 1

There are 18 South American butterflies and 12 European butterflies.

Explanation:

The question is incomplete so the complete question is below:

The ratio of North American butterflies to South American butterflies at a butterfly park is 5:3.The ratio of South American butterflies to European butterflies is 3:2. There are 30 North American butterflies at the butterfly park.

How many South American butterflies are there and how many European butterflies are there ?

Now, to find the number of South American butterflies European butterflies are there.

Let the number of South American butterflies be
`x.`

The North American butterflies = 30.

As, given the ratio of North American butterflies to South American butterflies at a butterfly park is 5:3.

So, 5 is equivalent to 3.

Thus, 30 is equivalent to
`x.`

Now, to get the number of South American butterflies by using cross multiplication method:

`(5)/(3) =(30)/(x)`

By cross multiplying we get:

`5x=90`

Dividing both sides by 5 we get:

`x=18.`

The number of South American butterflies = 18.

Now, to get the number of European butterflies:

Let the number of European butterflies be
`y.`

As, given the ratio of South American butterflies to European butterflies is 3:2.

So, 3 is equivalent to 2.

Thus, 18 is equivalent to
`y` .

So, to solve by using cross multiplication method:

`(3)/(2) =(18)/(y)`

By cross multiplying we get:

`3y=36`

Dividing both sides by 3 we get:

`y=12.`

The number of European butterflies = 12.

Therefore, there are 18 South American butterflies and 12 European butterflies.