Math Question: If a card punch operator can process 80 cards in half an hour How many cards can this process in 7hr 30min? Mathematics Interview QuestionAnswer: 1200 Previous QuestionNext QuestionIn a certain company 20% of the men and 40% of the women attended the annual company picnic. If 35% of all the employees are men .What % of all the employee went to the picnic?In a computer tape library there are two racks with 40 tapes per rack.In a given day 30 tapes are in use . What fraction remains in the rack?