Final answer:
A traditional rosary has 55 'Hail Mary' beads divided into five decades, each consisting of ten small beads and one larger bead.
Step-by-step explanation:
A rosary is a traditional Catholic prayer tool that consists of a string of beads used to count prayers. It is divided into five decades, each representing a different mystery from the life of Jesus and Mary. Each decade consists of ten small beads and one larger bead.
The larger bead is called the 'Our Father' bead, and the smaller beads are called the 'Hail Mary' beads. Therefore, each decade of the rosary has eleven 'Hail Mary' beads. So, in total, a traditional rosary has 55 'Hail Mary' beads.
It's important to note that there are different types of rosaries, and some may have additional beads or variations in design, but the most common design consists of 55 'Hail Mary' beads.