Justin can make 25 scraves with 15 balls of yarn
Solution:
Given that Justin can make one scarve for 3/5 of a ball of yarn
He purchases 15 balls of yarn
To find: number of scarves Justin can make
Number of scarves Justin can make with 15 balls of yarn can be found out by dividing 15 balls of yarn by 3/5 of a ball of yarn



Thus he can make 25 scraves