question_answer 4)

A plane is flying at the height of 5000 m above the sea level. At a particular point, it is exactly above a submarine floating 1200 m below the sea level. What is the vertical distance between them?                

Answer:

                Vertical distance between the plane and submarine. \[=\text{ 5}000\text{m}-\left( -\text{12}00\text{m} \right)~~~~~~~~~~~~~\] \[=\text{ 5}000\text{ m }+\text{ 12}00\text{ m}\] \[=\text{ 62}00\text{m}.\]