You are at an elevation 380 m above sea level as you start a motor ride. During the ride, your elevation changes to following meters: 540 m, -268 m, 116 m, 490 m, -844 m, and 94 m. What is your elevation relative to the sea level at the end of the ride (in m)?
Take sea level as a reference. So, above sea level we will take it as positive and below sea level we will take it as negative. So, when we go up we will take positive sign and when we go down we will take negative sign with respect to sea level.
So, first time the height is 540 m. (Above sea level)
Second time the height is -268 m. (Below sea level)
Third time the height is 116 m. (Above sea level)
Fourth time the height is -268 m. (Below sea level)
Fifth time the height is -844 m. (Below sea level)
In the end the height is 94 m. (Above sea level)
So in the end, you are at a height of 94 m above from the sea level.