a ratio of north america butterflies to soulth american butteries at a butterflies at the park is 5:3. the ratio of south american butterflies to eurpopean butterflies is 3:2. There are 30 north american butterflies at the butterflies at the butterfly park. how many south american butterflies are there

There are 18 south American butterflies in the parkSolution:Given that , A ratio of north america butterflies to south american butteries at the park is 5 : 3And the ratio of south american butterflies to eurpopean butterflies is 3:2.  There are 30 north american butterflies at the butterflies at the butterfly park Number of north America butterflies : number of south American butterflies = 5 : 330 : number of south American butterflies = 5 : 3[ since there are 30 north butterflies ][tex]\frac{30}{\text { number of south american butterflies }}=\frac{5}{3}[/tex][tex]30 \times 3=\text { number of south American butterflies } \times 5[/tex][tex]\text { Number of south American butterflies } \times 5=90[/tex]Number of south American butterflies = 18 Hence, there are 18 south American butterflies in the park.