Question: how dhritarashtra had 100 sons?
Answer: Actually, Dhritarashtra had 101 children . One hundred sons and a daughter called **Dushala** from Gandhari, also he had another son **Yuyutsu** from a Vaishya servant Sukhada. ... during her early years Gandhari served maharishi VedVyas with utmost devotion and in return, she received a boon of 100 children from him.