Indicate the following by using integers.

3 km above sea level.

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+3km

-3km

+4km

-4km

answer is A.

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Detailed Solution

The given statement is, "3 km above sea level".
The term "Above sea level" indicates that the given number denotes a positive term.
By using integers, the given statement can be indicated as +3 km.
Therefore the given statement ‘3 km above sea level’ is indicated as +3 km.
Hence option (1) is correct.

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