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Q.

A driver is 20 m below sea level. If he goes further down by 10m, then find his new position.


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a

10m

b

-10m

c

30m

d

-30m 

answer is D.

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Detailed Solution

Concept: To solve this question, we need to assume the sea level to be a reference point, i.e. , sea level = 0 m.
Any depth below sea level will be denoted by a “-ve” sign and any height above the sea level to be denoted by “+ve” sign.
Given, the diver is 20m below sea level, i.e. , at -20 m.
If he further goes down by 10 m, his new position will be
Question ImageHence, the correct answer is (4).
 
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