Answer:
[tex]3:5[/tex]
Step-by-step explanation:
[tex]We\ are\ given,\\No.\ of\ circles\ given=15\ circles\\No.\ of\ triangles\ given=9\ triangles\\Hence,\\The\ ratio\ between\ the\ no.\ of\ triangles\ to\ the\ No.\ of\ circles=\frac{9}{15}\\Hence\ by\ simplifying\ we\ get, \\The\ ratio\ between\ the\ no.\ of\ triangles\ to\ the\ No.\ of\ circles=\frac{3}{5}\\The\ ratio\ between\ the\ no.\ of\ triangles\ to\ the\ No.\ of\ circles=3:5[/tex]
