Jericho Vehicles manufactures special-purpose all-terrain vehicles primarily for the military and government agencies in Canada and for foreign governments. The company is planning to bid on a new all-terrain vehicle specially equipped for desert military action. The company has experienced an 87% learning curve in the past for producing similar vehicles. Based on a prototype model, it estimates the first vehicle produced will require 1600 hours of direct labour. The order is for 60 all-terrain vehicles. Determine the time that will be required for the 30th and 60th units.