Short Question: What is age of Hazrat Yousaf (AS), when he was thrown into a well ?

Short Question: What is age of Hazrat Yousaf (AS), when he was thrown into a well ?

حضرت یوسف علیہ السلام کی عمر کیا تھی جب آپ کو کنویں میں پھینکا تھا؟
Explanation

Hazrat Yousaf (AS) was 15 years old when his brothers thrown him into the wall.

Hazrat Yousaf (AS) remained in the well for three days