Word Problems Quiz

Two machines can complete 5 tasks every 4 days.  Let t represent the number of tasks these machines can complete in a 31-day month.  Which proportion can be used to solve for the value of t?

A bus travels 300 miles on 12 gallons of gasoline.  At this rate, how many gallons will it need to travel 650 miles?

At a concert, people's hands were stamped as they walked in.  To estimate the attendance, the staff randomly stamped 120 people's hand with a red stamp instead of a blue stamp.  A random sample of 250 people in the crowd found 4 people with a red stamp.  What is the best estimate for the size of the crowd?

A nonstop bus ride from the bus stateion in Atlantic City, New Jersey, to the bus station in Albany, New York, took 6 hours.  If the average speed of the bus was 21 m/second, what is the distance between the two bus stations, to the nearest kilometer.

A jumbo je carries 330 passengers, 32 in first class and the remainder in coach.  If the average first class ticket is $860 and the average coach ticket is $360, how much money will the airline gross if the plane is full?