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||. Answer the following 1. The sum of two numbers is 30. Find the numbers if their product is maximum. 2. A ship lies 6 mi. from shore, and opposite a point 10 mi. farther along the shore another ship lies 18 mi. offshore. A boat from the first ship is to land a passenger and then proceed to the other ship. What is the least distance the boat can travel? 3. An observer stands 200 meters erOf a hot air balloon. The balloon rises vertically at a constant rate of4 . the angle of elevation of the balloon increasing 30 seconds after the launch? 4. A train, starting at noon, travels north at 40 mi/hr. Another train, starting from the same point at 2 PM, travels east at SOmE/hr, how fast the two trains are separating at 3PM