Question

A submarine hovers at 240 meters below sea level. If it descends 160 meters and then ascends 390 meters, what is its new position?

Answer 1

Answer:

10 meters below sea level

Step-by-step explanation:

Let the sea level be 0.

As the submarine hovers at 240 meters below sea level, it is at -240 m

Now, since it descends 160 meters and then ascends 390 meters, its new position is

-240 -160 + 390 = -10 m

Hence it is 10 meters below sea level