Answer = Lushkoff is obliged to sergei. Had there been no encounter with sergei, Lushkov would have still been begging on the streets. sergei gives him an opportunity of meetimg olga. The whole incident has changed the way lushkov thinks abouy his future. Hits stint with sergei and olga gives him a new lease of life and helps him in getting a decent job where he earns thirty five roubles a months.