Lushkoff is earning thirty five roubles a month. How is he obliged to Sergei for this?

Explanation

Had there been no encounter with Sergei Lushkoff wouldhave continued begging. It was because of Sergei that he could get an opportunity to be helped by Olga. The whole incident changes the way Lushkoff thinks about is future. Earlier he had no confidence of getting a job. His stint with Sergei and Olga gives him a new confidence which helps him land a decent job.