1. Romy can climb coconut tree at the rate of 10 ft per minute and return at 20 ft per minute. If it took him 3 minutes to climb and return. Determine the height of the coconut?
2. There are two planes that fly in two directions. One is flying for East direction with the rate of 300kph and other is for West direction with the rate of 360kph. In how many minutes if they are 660 km apart?
3. Two planes travel from opposite direction. Plane A travel 70kph from one direction and plane B travel from opposite direction at the rate of 90kph. If the distance is 640km. In how many hours the two planes intersect?
4. Two planes x and y are 180 miles apart and mving from opposite direction at a rate of 20 and 30 miles per hour respectively. How many miles is covered by the slower plane when they intersect?
5. A man has 2 hours at his disposal. How far can he ride at the rate of 20 km per hour and return by walking at the rate of 5 km per hour.