Question

A submarine was situated 152 m below the sea level.If it rises up 125 m What is it's new position ,if instead of rising up it goes down by 300 m

Answer 1

if it rises up then it is 27and if goes down then it is, 452

Answer 2

The submarine is situated= 152m
The submarine rises up= 125m
Instead of rising it goes below the sea= 300

So it's current position is -148 metres under the sea.
$152 - 300 = - 148$