1. Assume you have the blue candle which is 8 feet tall and takes 10 hours to burn and the red candle which is 10 feet tall and takes eight hours to burn. If you light them both at dame time, when (to the nearest minute) will blue candle be three times height of red candle?
2. The bicycle wheel has the 12-inch radius. If you peddle at the rate of 60 revolutions per minute, how long will it take you to go nine miles?
3. Luxury cruise ship leaves New York on its way to London. When it is 180 miles from shore the helicopter is sent out to catch up with ship. Helicopter's spees is 10 times that of the ship. How far from New York helicopter catches up with ship?
4. Meghan travels from A to B at 2 muntes per mile and returns over same route at two miles per minute. Determine her average speed, in miles per hour, for whole trip.