Question

A roller coaster climbs 120 feet from ground level then drops 75 feet before climbing another 105 feet. How far above ground is the roller coaster now?

Answer 1

150

Explanation:

Answer 2

The roller coaster is 155 feet above the ground.

Explanation:

Given:

The roller coaster climbs 120 feet from ground level.

Then drops 75 feet

Then again climbs 105 feet

To find distance of roller coaster above the ground now we will subtract the drop in level from the rise and then add the second rise to the difference.

This can be evaluated as:

`125\ ft-75\ ft+105\ ft`

⇒
`50\ ft + 105\ ft`

⇒
`155\ ft`

Thus the roller coaster is 155 feet above the ground.