According to the paper on MRP by Mabert, in the production of the WWII B-24 bombers at the Willow Run plant, computer operators were required to process tens of thousands of punched cards for a routine update.

it might be to see if the person answering knows what they are talking about other than just saying, "its b hope this ! : )" because they could say it then get the wrong answer because they only answered for the points.

urban people were mostly involved in jobs that required phyisical labor they are paid daily wages (minimum wages) from which they evoke their living. daily wages also mean that the day they don't turn up for work ,even due to sickness, they aren't paid anything.