In a given situation where workers are of the same rate, the number of workers is directly proportional to the amount of work done and inversely proportional to the time of work. It takes 15 men, working
8 hours a day for 20 days, to produce 3 sets of furniture. If the men work at the same rate, how many
days will it take 10 men to produce 6 sets of furniture if they work 6 hours a day?

Television viewing reached a new high when the global information and measurement company reported a mean daily viewing time of 8.35 hours per household. use a normal probability distribution with a standard deviation of 2.5 hours to answer the following questions about daily television viewing per household. a. what is the probability that a household views television between 4 and 10 hours a day? (to 4 decimals) b. how many hours of television viewing must a household have in order to be in the top 7% of all television viewing household? (to 2 decimals) c. what is the probability that a household views television more than 4 hours a day? (to 4 decimals)