Question

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?
NCERT Class 7th Mathematics Chapter 1 Integers

Answer 1

Hi ,
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Here we use the concept of Absolute

Value of an integer.

Absolute value of an integer is the

numerical value of the integer

regardless of its sign.

If ' x ' is an integer then its absolute

value is denoted by | x | and is

defined as

i ) | x | = x , if x is positive.

ii ) | x | = 0 , if x is zero,

iii ) | x | = - x , if x is negative.
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According to the given problem ,

Distance of the flight above the sea

level = 5000m

Distance of the submarine below the

Sea level = -1200m

Vertical distance between flight and

Submarine = | 5000 | + | - 1200 |

= 5000 + 1200

= 6200 m

I hope this helps you.

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Answer 2

Answer:

height of a plane above the sea level = 5000 m

floating a submarine below the sea level = 1200 m

the vertical distance between the plane and the submarine = (5000+1200)m

= 6200 m

Step-by-step explanation:

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