How long does it take you to bust a nut?

Depends.. if you have lots of time, can go for an hour or more..
if you want to  finish as quick as possible, can probably finish in under a minute..  on average around 5-10 mins. that sounds so wrong. : (

The answer to this would be 10-30 secs

The Progressive Era was a period between the 1890s to 1920s in the history of the USA when social activism and political reforms spread across the United States. Woman's Suffrage Movement, Efficiency Movement targeting the elimination of waste and scientific management were mere examples of this period.