Question

A deep-sea diver must descend and ascend in short steps to equalize pressure on his body. If the diver rises toward the surface too fast, he may suffer from a physical condition called “the bends.” Suppose the diver started at 82 feet below the surface and rose in five steps of 15 feet each. Use an integer to describe his new position in relation to the water surface.

Answer 1

The diver's new position in relation to the water surface would be 7 feet below the surface.

Calculation:
Starting position: 82 feet below the surface
Step 1: Ascend 15 feet, position is now 67 feet below the surface
Step 2: Ascend another 15 feet, position is now 52 feet below the surface
Step 3: Ascend another 15 feet, position is now 37 feet below the surface
Step 4: Ascend another 15 feet, position is now 22 feet below the surface
Step 5: Ascend another 15 feet, position is now 7 feet below the surface