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## Homework Statement

The bore hole of depth [tex]2000m[/tex] contains both oil and water as shown. The pressure at the bottom is [tex]17.5MPa[/tex]. The density of the oil is [tex]830kgm^-3[/tex] and the density of the water is [tex]1000kgm^-3[/tex].

http://img384.imageshack.us/img384/6944/10062008fj0.png [Broken]

What is the depth x of the oil?

## Homework Equations

Pressure = Height x Density x Gravity

## The Attempt at a Solution

[tex]17.5 \times 10^6 = x \times 1000 \times 9.81[/tex]

[tex]x = \frac{17.5 \times 10^6}{1000 \times 9.81}[/tex]

[tex]x = 1789.893986m[/tex]

Where did I go wrong?

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