Minimum wages: government must fix time or piece rates considering worker skill, area, and arduousness adjustments. The appropriate Government must fix the minimum rate of wages for time work or piece work-ensuring piece workers receive a time-work equivalent-and may fix time-work rates by hour, day, or month with prescribed calculation methods. In fixation it shall primarily consider worker skill classifications and geographical area and may additionally account for arduousness of work as prescribed; prescribed norms will govern fixation and the number of distinct minimum rates should be kept to a minimum.