Mathematics and Society - OS X Lion Server

----1) A bicycle can go 18 km/h. How long will it take to go 3 km? minutesA car in traffic averages 21 km/h.3 km? ______ minutesHow long will it take a car in traffic to go2) About 60% of the car trips are less than 4 km. How long would it take a bicycleto go 4 kmat a speed of 18 km/h?3) Almost half of the trips to work are less than 6.5 km. How long would it take tobike 6.5 km at a speed of 18 km/h?4) How far do people in your family go to get to work?How long would it take to bike?5) If bikes were used for short trips to work, the U.S. would save 6% of the 660 billionlitres of petroleum used. How many billion litres of petroleum would thisbe?6) In 1971 there were 24.5% more bicycles sold than cars. There were 11 million carssold that year.How many bicycles were sold?7) One million people get hurt on bicycles every year. What do you think ate some ofthe causes of bicycle accidents?8) Why don't more people ride bicycles? Take a poll of adults in your neighborhood.See how many do ride bicycles to work or to shop. See why the others do not-­distance, weather, hills, safety, too old, afraid bicycle would get stolen.Data from The Bicycle vs. The Energy Crisis, Environmental Protection Agency247