Mathematics
Grade10
Easy

Question

A submarine is at a height of 22 m from the sea level. During a diving exercise, the diver rises 10 m, falls 7 m and then rises once again by 14 m. What is the submarine’s final height from sea level?

  1. 7 m    
  2. - 5 m    
  3. 4 m    
  4. - 8 m    

Hint:

Finding the submarine's height from the sea level

The correct answer is: - 5 m


    Given that;
    A submarine is at a height of − 22 m from the sea level
    and then diver rises 10 m, falls 7 m and then rises once again by 14 m.
    The submarine’s height from the sea level is - 22 + 10 – 7 + 14 = - 5 m

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