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"Varsha dug the soil $200$ m deep." Represent this situation using integer.

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100 m

- 100 m

200 m

- 200 m

answer is D.

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Detailed Solution

Given situation is “Varsha dug the soil

200

m deep”.
The positive integers are represented by the sign

(+)

in front of each n integer.
The set of positive integers may be denoted by

Z^{+}

. Positive integers are:

Z^{+} = 1, 2, 3, 4, 5, . . . . .

The negative integers are the collection of real numbers with negative sign

(-)

in front of the standard numerals and are always less than zero. The set of negative integers is represented by

Z^{-}

. Negative integers are written as:

Z^{-} = . . . ., - 5, - 4, - 3, - 2, - 1

Moreover, shallow represents the positive sign

(+)

and deep represents the negative sign

(-)

.
Hence, the statement "Varsha dug the soil

200

m deep." represents the negative sign that is

- 200 m

.
Therefore, option (4) is correct.

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