Answer,
12 to 14 working hours a day.
Step-by-step explanation,
Working conditions in the late 1800 were terrible.workers were made to work for long hours which them get sick leading even to death.They were also paid low wages despite long working hours.People were willing to work as long as you get paid and one would not want to loose the job because many people were unemployed.The workers were also working under very harsh conditions.Workers orgarnized trade unions to solve their problems.These unions used strike to force employers improve their working condition and increase wages.