IKMC 2027 - Grades 9-10 - Self-study SET 11 - Thematic Batch 3 Question 5

Asif, Usman and Sami have 30 balls altogether. Usman gives Sami 5, Sami gives Asif 4, and Asif gives Usman 2. They then have equal numbers. How many did Asif have initially?