Question

A place is 45 metre above sea level and another place is 25 meter below sea level. What is the difference of level
in metres between the two places?

Answer 1

Answer:

Step-by-step explanation:

The difference of level between the two places is given as

45 - (-25)

=45 + 25

=70 metres

Note that we have taken -25 metre for the place below sea level since in integers , the place above sea level is taken as positive and below sea level as negative.

Hope it is clear

Answer 2

Answer:

The difference of level between the two places is 70 meters.

Step-by-step explanation:

If the sea level is considered as 0 in straight line .

Then first place is in the positive side of 0 .

2nd place is in the negative side of 0.

So , first is +45.

2nd is -25.

Difference is (45 - (-25)) = 45 + 25 = 70 .

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