Ex.1.1 Q4 Integers - NCERT Maths Class 7

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Question

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

Text Solution

What is known?

Distance of plane and submarine from the sea level

What is unknown?

The vertical distance between plane and submarine.

Steps:

Height of the plane above the sea level \(= 5000 \rm\,m\)

Depth of submarine below the sea level \(= \,–1200 \rm\,m\) 

Distance between plane and submarine

\[\begin{align}& = 5000\rm{}\,\, m -\left( \rm{}-1200\, m \right)\\\rm{}  &= 5000 + 1200\\& = 6200\rm{} m\\{\rm{}}\end{align}\]

Hence, the vertical distance between \(\rm{}= 6200m.\)

  
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